Phys Ed: Getting the Right Dose of Exercise

Phys Ed

Gretchen Reynolds on the science of fitness.

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A common concern about exercise is that if you don’t do it almost every day, you won’t achieve much health benefit. But a commendable new study suggests otherwise, showing that a fairly leisurely approach to scheduling workouts may actually be more beneficial than working out almost daily.

For the new study, published this month in Exercise & Science in Sports & Medicine, researchers at the University of Alabama at Birmingham gathered 72 older, sedentary women and randomly assigned them to one of three exercise groups.

One group began lifting weights once a week and performing an endurance-style workout, like jogging or bike riding, on another day.

Another group lifted weights twice a week and jogged or rode an exercise bike twice a week.

The final group, as you may have guessed, completed three weight-lifting and three endurance sessions, or six weekly workouts.

The exercise, which was supervised by researchers, was easy at first and meant to elicit changes in both muscles and endurance. Over the course of four months, the intensity and duration gradually increased, until the women were jogging moderately for 40 minutes and lifting weights for about the same amount of time.

The researchers were hoping to find out which number of weekly workouts would be, Goldilocks-like, just right for increasing the women’s fitness and overall weekly energy expenditure.

Some previous studies had suggested that working out only once or twice a week produced few gains in fitness, while exercising vigorously almost every day sometimes led people to become less physically active, over all, than those formally exercising less. Researchers theorized that the more grueling workout schedule caused the central nervous system to respond as if people were overdoing things, sending out physiological signals that, in an unconscious internal reaction, prompted them to feel tired or lethargic and stop moving so much.

To determine if either of these possibilities held true among their volunteers, the researchers in the current study tracked the women’s blood levels of cytokines, a substance related to stress that is thought to be one of the signals the nervous system uses to determine if someone is overdoing things physically. They also measured the women’s changing aerobic capacities, muscle strength, body fat, moods and, using sophisticated calorimetry techniques, energy expenditure over the course of each week.

By the end of the four-month experiment, all of the women had gained endurance and strength and shed body fat, although weight loss was not the point of the study. The scientists had not asked the women to change their eating habits.

There were, remarkably, almost no differences in fitness gains among the groups. The women working out twice a week had become as powerful and aerobically fit as those who had worked out six times a week. There were no discernible differences in cytokine levels among the groups, either.

However, the women exercising four times per week were now expending far more energy, over all, than the women in either of the other two groups. They were burning about 225 additional calories each day, beyond what they expended while exercising, compared to their calorie burning at the start of the experiment.

The twice-a-week exercisers also were using more energy each day than they had been at first, burning almost 100 calories more daily, in addition to the calories used during workouts.

But the women who had been assigned to exercise six times per week were now expending considerably less daily energy than they had been at the experiment’s start, the equivalent of almost 200 fewer calories each day, even though they were exercising so assiduously.

“We think that the women in the twice-a-week and four-times-a-week groups felt more energized and physically capable” after several months of training than they had at the start of the study, says Gary Hunter, a U.A.B. professor who led the experiment. Based on conversations with the women, he says he thinks they began opting for stairs over escalators and walking for pleasure.

The women working out six times a week, though, reacted very differently. “They complained to us that working out six times a week took too much time,” Dr. Hunter says. They did not report feeling fatigued or physically droopy. Their bodies were not producing excessive levels of cytokines, sending invisible messages to the body to slow down.

Rather, they felt pressed for time and reacted, it seems, by making choices like driving instead of walking and impatiently avoiding the stairs.

Despite the cautionary note, those who insist on working out six times per week need not feel discouraged. As long as you consciously monitor your activity level, the findings suggest, you won’t necessarily and unconsciously wind up moving less over all.

But the more fundamental finding of this study, Dr. Hunter says, is that “less may be more,” a message that most likely resonates with far more of us. The women exercising four times a week “had the greatest overall increase in energy expenditure,” he says. But those working out only twice a week “weren’t far behind.”

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Well: Straining to Hear and Fend Off Dementia

At a party the other night, a fund-raiser for a literary magazine, I found myself in conversation with a well-known author whose work I greatly admire. I use the term “conversation” loosely. I couldn’t hear a word he said. But worse, the effort I was making to hear was using up so much brain power that I completely forgot the titles of his books.

A senior moment? Maybe. (I’m 65.) But for me, it’s complicated by the fact that I have severe hearing loss, only somewhat eased by a hearing aid and cochlear implant.

Dr. Frank Lin, an otolaryngologist and epidemiologist at Johns Hopkins School of Medicine, describes this phenomenon as “cognitive load.” Cognitive overload is the way it feels. Essentially, the brain is so preoccupied with translating the sounds into words that it seems to have no processing power left to search through the storerooms of memory for a response.

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Katherine Bouton speaks about her own experience with hearing loss.

A transcript of this interview can be found here.

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Over the past few years, Dr. Lin has delivered unwelcome news to those of us with hearing loss. His work looks “at the interface of hearing loss, gerontology and public health,” as he writes on his Web site. The most significant issue is the relation between hearing loss and dementia.

In a 2011 paper in The Archives of Neurology, Dr. Lin and colleagues found a strong association between the two. The researchers looked at 639 subjects, ranging in age at the beginning of the study from 36 to 90 (with the majority between 60 and 80). The subjects were part of the Baltimore Longitudinal Study of Aging. None had cognitive impairment at the beginning of the study, which followed subjects for 18 years; some had hearing loss.

“Compared to individuals with normal hearing, those individuals with a mild, moderate, and severe hearing loss, respectively, had a 2-, 3- and 5-fold increased risk of developing dementia over the course of the study,” Dr. Lin wrote in an e-mail summarizing the results. The worse the hearing loss, the greater the risk of developing dementia. The correlation remained true even when age, diabetes and hypertension — other conditions associated with dementia — were ruled out.

In an interview, Dr. Lin discussed some possible explanations for the association. The first is social isolation, which may come with hearing loss, a known risk factor for dementia. Another possibility is cognitive load, and a third is some pathological process that causes both hearing loss and dementia.

In a study last month, Dr. Lin and colleagues looked at 1,984 older adults beginning in 1997-8, again using a well-established database. Their findings reinforced those of the 2011 study, but also found that those with hearing loss had a “30 to 40 percent faster rate of loss of thinking and memory abilities” over a six-year period compared with people with normal hearing. Again, the worse the hearing loss, the worse the rate of cognitive decline.

Both studies also found, somewhat surprisingly, that hearing aids were “not significantly associated with lower risk” for cognitive impairment. But self-reporting of hearing-aid use is unreliable, and Dr. Lin’s next study will focus specifically on the way hearing aids are used: for how long, how frequently, how well they have been fitted, what kind of counseling the user received, what other technologies they used to supplement hearing-aid use.

What about the notion of a common pathological process? In a recent paper in the journal Neurology, John Gallacher and colleagues at Cardiff University suggested the possibility of a genetic or environmental factor that could be causing both hearing loss and dementia — and perhaps not in that order. In a phenomenon called reverse causation, a degenerative pathology that leads to early dementia might prove to be a cause of hearing loss.

The work of John T. Cacioppo, director of the Social Neuroscience Laboratory at the University of Chicago, also offers a clue to a pathological link. His multidisciplinary studies on isolation have shown that perceived isolation, or loneliness, is “a more important predictor of a variety of adverse health outcomes than is objective social isolation.” Those with hearing loss, who may sit through a dinner party and not hear a word, frequently experience perceived isolation.

Other research, including the Framingham Heart Study, has found an association between hearing loss and another unexpected condition: cardiovascular disease. Again, the evidence suggests a common pathological cause. Dr. David R. Friedland, a professor of otolaryngology at the Medical College of Wisconsin in Milwaukee, hypothesized in a 2009 paper delivered at a conference that low-frequency loss could be an early indication that a patient has vascular problems: the inner ear is “so sensitive to blood flow” that any vascular abnormalities “could be noted earlier here than in other parts of the body.”

A common pathological cause might help explain why hearing aids do not seem to reduce the risk of dementia. But those of us with hearing loss hope that is not the case; common sense suggests that if you don’t have to work so hard to hear, you have greater cognitive power to listen and understand — and remember. And the sense of perceived isolation, another risk for dementia, is reduced.

A critical factor may be the way hearing aids are used. A user must practice to maximize their effectiveness and they may need reprogramming by an audiologist. Additional assistive technologies like looping and FM systems may also be required. And people with progressive hearing loss may need new aids every few years.

Increasingly, people buy hearing aids online or from big-box stores like Costco, making it hard for the user to follow up. In the first year I had hearing aids, I saw my audiologist initially every two weeks for reprocessing and then every three months.

In one study, Dr. Lin and his colleague Wade Chien found that only one in seven adults who could benefit from hearing aids used them. One deterrent is cost ($2,000 to $6,000 per ear), seldom covered by insurance. Another is the stigma of old age.

Hearing loss is a natural part of aging. But for most people with hearing loss, according to the National Institute on Deafness and Other Communication Disorders, the condition begins long before they get old. Almost two-thirds of men with hearing loss began to lose their hearing before age 44. My hearing loss began when I was 30.

Forty-eight million Americans suffer from some degree of hearing loss. If it can be proved in a clinical trial that hearing aids help delay or offset dementia, the benefits would be immeasurable.

“Could we do something to reduce cognitive decline and delay the onset of dementia?” he asked. “It’s hugely important, because by 2050, 1 in 30 Americans will have dementia.

“If we could delay the onset by even one year, the prevalence of dementia drops by 15 percent down the road. You’re talking about billions of dollars in health care savings.”

Should studies establish definitively that correcting hearing loss decreases the potential for early-onset dementia, we might finally overcome the stigma of hearing loss. Get your hearing tested, get it corrected, and enjoy a longer cognitively active life. Establishing the dangers of uncorrected hearing might even convince private insurers and Medicare that covering the cost of hearing aids is a small price to pay to offset the cost of dementia.

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Katherine Bouton is the author of the new book, “Shouting Won’t Help: Why I — and 50 Million Other Americans — Can’t Hear You,” from which this essay is adapted.

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This post has been revised to reflect the following correction:

Correction: February 12, 2013

An earlier version of this article misstated the location of the Medical College of Wisconsin. It is in Milwaukee, not Madison.

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Personal Health: Getting the Right Addiction Treatment

“Treatment is not a prerequisite to surviving addiction.” This bold statement opens the treatment chapter in a helpful new book, “Now What? An Insider’s Guide to Addiction and Recovery,” by William Cope Moyers, a man who nonetheless needed “four intense treatment experiences over five years” before he broke free of alcohol and drugs.

As the son of Judith and Bill Moyers, successful parents who watched helplessly during a 15-year pursuit of oblivion through alcohol and drugs, William Moyers said his near-fatal battle with addiction demonstrates that this “illness of the mind, body and spirit” has no respect for status or opportunity.

“My parents raised me to become anything I wanted, but when it came to this chronic incurable illness, I couldn’t get on top of it by myself,” he said in an interview.

He finally emerged from his drug-induced nadir when he gave up “trying to do it my way” and instead listened to professional therapists and assumed responsibility for his behavior. For the last “18 years and four months, one day at a time,” he said, he has lived drug-free.

“Treatment is not the end, it’s the beginning,” he said. “My problem was not drinking or drugs. My problem was learning how to live life without drinking or drugs.”

Mr. Moyers acknowledges that treatment is not a magic bullet. Even after a monthlong stay at a highly reputable treatment center like Hazelden in Center City, Minn., where Mr. Moyers is a vice president of public affairs and community relations, the probability of remaining sober and clean a year later is only about 55 percent. (Hazelden also published his book.)

“Be wary of any program that claims a 100 percent success rate,” Mr. Moyers warned. “There is no such thing.”

“Treatment works to make recovery possible. But recovery is also possible without treatment,” Mr. Moyers said. “There’s no one-size-fits-all approach. What I needed and what worked for me isn’t necessarily what you or your loved one require.”

As with many smokers who must make multiple attempts to quit before finally overcoming an addiction to nicotine, people hooked on alcohol or drugs often must try and try again.

Nor does treatment have as good a chance at succeeding if it is forced upon a person who is not ready to recover. “Treatment does work, but only if the person wants it to,” Mr. Moyers said.

Routes to Success

For those who need a structured program, Mr. Moyers described what to consider to maximize the chances of overcoming addiction to alcohol or drugs.

Most important is to get a thorough assessment before deciding where to go for help. Do you or your loved one meet the criteria for substance dependence? Are there “co-occurring mental illnesses, traumatic or physical disabilities, socioeconomic influences, cultural issues, or family dynamics” that may be complicating the addiction and that can sabotage treatment success?

While most reputable treatment centers do a full assessment before admitting someone, it is important to know if the center or clinic provides the services of professionals who can address any underlying issues revealed by the assessment. For example, if needed, is a psychiatrist or other medical doctor available who could provide therapy and prescribe medication?

Is there a social worker on staff to address challenging family, occupational or other living problems? If a recovering addict goes home to the same problems that precipitated the dependence on alcohol or drugs, the chances of remaining sober or drug-free are greatly reduced.

Is there a program for family members who can participate with the addict in learning the essentials of recovery and how to prepare for the return home once treatment ends?

Finally, does the program offer aftercare and follow-up services? Addiction is now recognized to be a chronic illness that lurks indefinitely within an addict in recovery. As with other chronic ailments, like diabetes or hypertension, lasting control requires hard work and diligence. One slip need not result in a return to abuse, and a good program will help addicts who have completed treatment cope effectively with future challenges to their recovery.

How Families Can Help

“Addiction is a family illness,” Mr. Moyers wrote. Families suffer when someone they love descends into the purgatory of addiction. But contrary to the belief that families should cut off contact with addicts and allow them to reach “rock-bottom” before they can begin recovery, Mr. Moyers said that the bottom is sometimes death.

“It is a dangerous, though popular, misconception that a sick addict can only quit using and start to get well when he ‘hits bottom,’ that is, reaches a point at which he is desperate enough to willingly accept help,” Mr. Moyers wrote.

Rather, he urged families to remain engaged, to keep open the lines of communication and regularly remind the addict of their love and willingness to help if and when help is wanted. But, he added, families must also set firm boundaries — no money, no car, nothing that can be quickly converted into the substance of abuse.

Whether or not the addict ever gets well, Mr. Moyers said, “families have to take care of themselves. They can’t let the addict walk over their lives.”

Sometimes families or friends of an addict decide to do an intervention, confronting the addict with what they see happening and urging the person to seek help, often providing possible therapeutic contacts.

“An intervention can be the key that interrupts the process and enables the addict to recognize the extent of their illness and the need to take responsibility for their behavior,”Mr. Moyers said.

But for an intervention to work, Mr. Moyers said, “the sick person should not be belittled or demeaned.” He also cautioned families to “avoid threats.” He noted that the mind of “the desperate, fearful addict” is subsumed by drugs and alcohol that strip it of logic, empathy and understanding. It “can’t process your threat any better than it can a tearful, emotional plea.”

Resource Network

Mr. Moyer’s book lists nearly two dozen sources of help for addicts and their families. Among them:

Alcoholics Anonymous World Services www.aa.org;

Narcotics Anonymous World Services www.na.org;

Substance Abuse and Mental Health Services Administration treatment finder www.samhsa.gov/treatment/;

Al-Anon Family Groups www.Al-anon.alateen.org;

Nar-Anon Family Groups www.nar-anon.org;

Co-Dependents Anonymous World Fellowship www.coda.org.

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This is the second of two articles on addiction treatment. The first can be found at “Effective Addiction Treatment.”

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For Families Struggling with Mental Illness, Carolyn Wolf Is a Guide in the Darkness

When a life starts to unravel, where do you turn for help?

Melissa Klump began to slip in the eighth grade. She couldn’t focus in class, and in a moment of despair she swallowed 60 ibuprofen tablets. She was smart, pretty and ill: depression, attention deficit disorder, obsessive-compulsive disorder, either bipolar disorder or borderline personality disorder.

In her 20s, after a more serious suicide attempt, her parents sent her to a residential psychiatric treatment center, and from there to another. It was the treatment of last resort. When she was discharged from the second center last August after slapping another resident, her mother, Elisa Klump, was beside herself.

“I was banging my head against the wall,” the mother said. “What do I do next?” She frantically called support groups, therapy programs, suicide prevention lines, anybody, running down a list of names in a directory of mental health resources. “Finally,” she said, “somebody told me, ‘The person you need to talk to is Carolyn Wolf.’ ”

That call, she said, changed her life and her daughter’s. “Carolyn has given me hope,” she said. “I didn’t know there were people like her out there.”

Carolyn Reinach Wolf is not a psychiatrist or a mental health professional, but a lawyer who has carved out what she says is a unique niche, working with families like the Klumps.

One in 17 American adults suffers from a severe mental illness, and the systems into which they are plunged — hospitals, insurance companies, courts, social services — can be fragmented and overwhelming for families to manage. The recent shootings in Newtown, Conn., and Aurora, Colo., have brought attention to the need for intervention to prevent such extreme acts of violence, which are rare. But for the great majority of families watching their loved ones suffer, and often suffering themselves, the struggle can be boundless, with little guidance along the way.

“If you Google ‘mental health lawyer,’ ” said Ms. Wolf, a partner with Abrams & Fensterman, “I’m kinda the only game in town.”

On a recent afternoon, she described in her Midtown office the range of her practice.

“We have been known to pull people out of crack dens,” she said. “I have chased people around hotels all over the city with the N.Y.P.D. and my team to get them to a hospital. I had a case years ago where the person was on his way back from Europe, and the family was very concerned that he was symptomatic. I had security people meet him at J.F.K.”

Many lawyers work with mentally ill people or their families, but Ron Honberg, the national director of policy and legal affairs for the National Alliance on Mental Illness, said he did not know of another lawyer who did what Ms. Wolf does: providing families with a team of psychiatrists, social workers, case managers, life coaches, security guards and others, and then coordinating their services. It can be a lifeline — for people who can afford it, Mr. Honberg said. “Otherwise, families have to do this on their own,” he said. “It’s a 24-hour, 7-day-a-week job, and for some families it never ends.”

Many of Ms. Wolf’s clients declined to be interviewed for this article, but the few who spoke offered an unusual window on the arcane twists and turns of the mental health care system, even for families with money. Their stories illustrate how fraught and sometimes blind such a journey can be.

One rainy morning last month, Lance Sheena, 29, sat with his mother in the spacious family room of her Long Island home. Mr. Sheena was puffy-eyed and sporadically inattentive; the previous night, at the group home where he has been living since late last summer, another resident had been screaming incoherently and was taken away by the police. His mother, Susan Sheena, eased delicately into the family story.

“I don’t talk to a lot of people because they don’t get it,” Ms. Sheena said. “They mean well, but they don’t get it unless they’ve been through a similar experience. And anytime something comes up, like the shooting in Newtown, right away it goes to the mentally ill. And you think, maybe we shouldn’t be so public about this, because people are going to be afraid of us and Lance. It’s a big concern.”

Her son cut her off. “Are you comparing me to the guy that shot those people?”

“No, I’m saying that anytime there’s a shooting, like in Aurora, that’s when these things come out in the news.”

“Did you really just compare me to that guy?”

“No, I didn’t compare you.”

“Then what did you say?”

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In Nigeria, Polio Vaccine Workers Are Killed by Gunmen

At least nine polio immunization workers were shot to death in northern Nigeria on Friday by gunmen who attacked two clinics, officials said.

The killings, with eerie echoes of attacks that killed nine female polio workers in Pakistan in December, represented another serious setback for the global effort to eradicate polio.

Most of the victims were women and were shot in the back of the head, local reports said.

A four-day vaccination drive had just ended in Kano State, where the killings took place, and the vaccinators were in a “mop-up” phase, looking for children who had been missed, said Sarah Crowe, a spokeswoman for the United Nations Children’s Fund, one of the agencies running the eradication campaign.

Dr. Mohammad Ali Pate, Nigeria’s minister of state for health, said in a telephone interview that it was not entirely clear whether the gunmen were specifically targeting polio workers or just attacking the health centers where vaccinators happened to be gathering early in the morning. “Health workers are soft targets,” he said.

No one immediately took responsibility, but suspicion fell on Boko Haram, a militant Islamist group that has attacked police stations, government offices and even a religious leader’s convoy.

Polio, which once paralyzed millions of children, is now down to fewer than 1,000 known cases around the world, and is endemic in only three countries: Nigeria, Pakistan and Afghanistan.

Since September — when a new polio operations center was opened in the capital and Nigeria’s president, Goodluck Jonathan, appointed a special adviser for polio — the country had been improving, said Dr. Bruce Aylward, chief of polio eradication for the World Health Organization. There have been no new cases since Dec. 3.

While vaccinators have not previously been killed in the country, there is a long history of Nigerian Muslims shunning the vaccine.

Ten years ago, immunization was suspended for 11 months as local governors waited for local scientists to investigate rumors that it caused AIDS or was a Western plot to sterilize Muslim girls. That hiatus let cases spread across Africa. The Nigerian strain of the virus even reached Saudi Arabia when a Nigerian child living in hills outside Mecca was paralyzed.

Heidi Larson, an anthropologist at the London School of Hygiene and Tropical Medicine who tracks vaccine issues, said the newest killings “are kind of mimicking what’s going on in Pakistan, and I feel it’s very much prompted by that.”

In a roundabout way, the C.I.A. has been blamed for the Pakistan killings. In its effort to track Osama bin Laden, the agency paid a Pakistani doctor to seek entry to Bin Laden’s compound on the pretext of vaccinating the children — presumably to get DNA samples as evidence that it was the right family. That enraged some Taliban factions in Pakistan, which outlawed vaccination in their areas and threatened vaccinators.

Nigerian police officials said the first shootings were of eight workers early in the morning at a clinic in the Tarauni neighborhood of Kano, the state capital; two or three died. A survivor said the two gunmen then set fire to a curtain, locked the doors and left.

“We summoned our courage and broke the door because we realized they wanted to burn us alive,” the survivor said from her bed at Aminu Kano Teaching Hospital.

About an hour later, six men on three-wheeled motorcycles stormed a clinic in the Haye neighborhood, a few miles away. They killed seven women waiting to collect vaccine.

Ten years ago, Dr. Larson said, she joined a door-to-door vaccination drive in northern Nigeria as a Unicef communications officer, “and even then we were trying to calm rumors that the C.I.A. was involved,” she said. The Iraq and Afghanistan wars had convinced poor Muslims in many countries that Americans hated them, and some believed the American-made vaccine was a plot by Western drug companies and intelligence agencies.

Since the vaccine ruse in Pakistan, she said, “Frankly, now, I can’t go to them and say, ‘The C.I.A. isn’t involved.’ ”

Dr. Pate said the attack would not stop the newly reinvigorated eradication drive, adding, “This isn’t going to deter us from getting everyone vaccinated to save the lives of our children.”

Aminu Abubakar contributed reported from Kano, Nigeria.

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Well: Think Like a Doctor: A Confused and Terrified Patient

The Challenge: Can you solve the mystery of a middle-aged man recovering from a serious illness who suddenly becomes frightened and confused?

Every month the Diagnosis column of The New York Times Magazine asks Well readers to sift through a difficult case and solve a diagnostic riddle. Below you will find a summary of a case involving a 55-year-old man well on his way to recovering from a series of illnesses when he suddenly becomes confused and paranoid. I will provide you with the main medical notes, labs and imaging results available to the doctor who made the diagnosis.

The first reader to figure out this case will get a signed copy of my book, “Every Patient Tells a Story,” along with the satisfaction of knowing you solved a case of Sherlockian complexity. Good luck.

The Presenting Problem:

A 55-year-old man who is recovering from a devastating injury in a rehabilitation facility suddenly becomes confused, frightened and paranoid.

The Patient’s Story:

The patient, who was recovering from a terrible injury and was too weak to walk, had been found on the floor of his room at the extended care facility, raving that there were people out to get him. He was taken to the emergency room at the Waterbury Hospital in Connecticut, where he was diagnosed with a urinary tract infection and admitted to the hospital for treatment. Doctors thought his delirium was caused by the infection, but after 24 hours, despite receiving the appropriate antibiotics, the patient remained disoriented and frightened.

A Sister’s Visit:

The man’s sister came to visit him on his second day in the hospital. As she walked into the room she was immediately struck by her brother’s distress.

“Get me out of here!” the man shouted from his hospital bed. “They are coming to get me. I gotta get out of here!”

His brown eyes darted from side to side as if searching for his would-be attackers. His arms and legs shook with fear. He looked terrified.

For the past few months, the man had been in and out of the hospital, but he had been getting better — at least he had been improving the last time his sister saw him, the week before. She hurried into the bustling hallway and found a nurse. “What the hell is going on with my brother?” she demanded.

A Long Series of Illnesses:

Three months earlier, the patient had been admitted to that same hospital with delirium tremens. After years of alcohol abuse, he had suddenly stopped drinking a couple of days before, and his body was wracked by the sudden loss of the chemical he had become addicted to. He’d spent an entire week in the hospital but finally recovered. He was sent home, but he didn’t stay there for long.

The following week, when his sister hadn’t heard from him for a couple of days, she forced her way into his home. There she found him, unconscious, in the basement, at the bottom of his staircase. He had fallen, and it looked as if he may have been there for two, possibly three, days. He was close to death. Indeed, in the ambulance on the way to the hospital, his heart had stopped. Rapid action by the E.M.T.’s brought his heart back to life, and he made it to the hospital.

There the extent of the damage became clear. The man’s kidneys had stopped working, and his body chemistry was completely out of whack. He had a severe concussion. And he’d had a heart attack.

He remained in the intensive care unit for nearly three weeks, and in the hospital another two weeks. Even after these weeks of care and recovery, the toll of his injury was terrible. His kidneys were not working, so he required dialysis three times a week. He had needed a machine to help him breathe for so long that he now had to get oxygen through a hole that had been cut into his throat. His arms and legs were so weak that he could not even lift them, and because he was unable even to swallow, he had to be fed through a tube that went directly into his stomach.

Finally, after five weeks in the hospital, he was well enough to be moved to a short-term rehabilitation hospital to complete the long road to recovery. But he was still far from healthy. The laughing, swaggering, Harley-riding man his sister had known until that terrible fall seemed a distant memory, though she saw that he was slowly getting better. He had even started to smile and make jokes. He was confident, he had told her, that with a lot of hard work he could get back to normal. So was she; she knew he was tough.

Back to the Hospital:

The patient had been at the rehab facility for just over two weeks when the staff noticed a sudden change in him. He had stopped smiling and was no longer making jokes. Instead, he talked about people that no one else could see. And he was worried that they wanted to harm him. When he remained confused for a second day, they sent him to the emergency room.

You can see the records from that E.R. visit here.

The man told the E.R. doctor that he knew he was having hallucinations. He thought they had started when he had begun taking a pill to help him sleep a couple of days earlier. It seemed a reasonable explanation, since the medication was known to cause delirium in some people. The hospital psychiatrist took him off that medication and sent him back to rehab that evening with a different sleeping pill.

Back to the Hospital, Again:

Two days later, the patient was back in the emergency room. He was still seeing things that weren’t there, but now he was quite confused as well. He knew his name but couldn’t remember what day or month it was, or even what year. And he had no idea where he was, or where he had just come from.

When the medical team saw the patient after he had been admitted, he was unable to provide any useful medical history. His medical records outlined his earlier hospitalizations, and records from the nursing home filled in additional details. The patient had a history of high blood pressure, depression and alcoholism. He was on a long list of medications. And he had been confused for the past several days.

On examination, he had no fever, although a couple of hours earlier his temperature had been 100.0 degrees. His heart was racing, and his blood pressure was sky high. His arms and legs were weak and swollen. His legs were shaking, and his reflexes were very brisk. Indeed, when his ankle was flexed suddenly, it continued to jerk back and forth on its own three or four times before stopping, a phenomenon known as clonus.

His labs were unchanged from the previous visit except for his urine, which showed signs of a serious infection. A CT scan of the brain was unremarkable, as was a chest X-ray. He was started on an intravenous antibiotic to treat the infection. The thinking was that perhaps the infection was causing the patient’s confusion.

You can see the notes from that second hospital visit here.

His sister had come to visit him the next day, when he was as confused as he had ever been. He was now trembling all over and looked scared to death, terrified. He was certain he was being pursued.

That is when she confronted the nurse, demanding to know what was going on with her brother. The nurse didn’t know. No one did. His urinary tract infection was being treated with antibiotics, but he continued to have a rapid heart rate and elevated blood pressure, along with terrifying hallucinations.

Solving the Mystery:

Can you figure out why this man was so confused and tremulous? I have provided you with all the data available to the doctor who made the diagnosis. The case is not easy — that is why it is here. I’ll post the answer on Friday.

Friday Feb. 8 4:13 p.m. | Updated Thanks for all your responses. You can read about the winner at “Think Like a Doctor: A Confused and Terrified Patient Solved.”

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Rules and Regulations: Post your questions and diagnosis in the comments section below.. The correct answer will appear Friday on Well. The winner will be contacted. Reader comments may also appear in a coming issue of The New York Times Magazine.

Correction: The patient’s eyes were brown, not blue.

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Well: The 'Monday Morning' Medical Screaming Match

I did not think I would ever see another “morbidity and mortality” conference in which senior doctors publicly attacked their younger colleagues for making medical errors. These types of heated meetings were commonplace when I was a medical student but have largely been abandoned.

Yet here they were again on “Monday Mornings,” a new medical drama on the TNT network, based on a novel by Dr. Sanjay Gupta, CNN’s chief medical correspondent and one of the executive producers of the show. Such screaming matches may make for good television, but it is useful to review why new strategies have emerged for dealing with medical mistakes.

So-called M&M conferences emerged in the early 20th century as a way for physicians to review cases that had either surprising outcomes or had somehow gone wrong. Although the format varied among institutions and departments, surgery M&Ms were especially known for their confrontations, as more experienced surgeons often browbeat younger doctors into admitting their errors and promising to never make them again.

Such conferences were generally closed door — that is, attended only by physicians. Errors were a private matter not to be shared with other hospital staff, let alone patients and families.

But in the late 1970s, a sociology graduate student named Charles L. Bosk gained access to the surgery department at the University of Chicago. His resultant 1979 book, “Forgive and Remember,” was one of the earliest public discussions of how the medical profession addressed its mistakes.

Dr. Bosk developed a helpful terminology. Technical and judgment errors by surgeons could be forgiven, but only if they were remembered and subsequently prevented by those who committed them. Normative errors, which called into question the moral character of the culprit, were unacceptable and potentially jeopardized careers.

Although Dr. Bosk’s book was more observational than proscriptive, his depiction of M&M conferences was disturbing. I remember attending a urology M&M as a medical student in which several senior physicians berated a very well-meaning and competent intern for a perceived mistake. The intern seemed to take it very well, but my fellow students and I were shaken by the event, asking how such hostility could be conducive to learning.

There were lots of angry accusations in the surgical M&Ms in the pilot episode of “Monday Mornings.” In one case, a senior doctor excoriated a colleague who had given Tylenol to a woman with hip pain who turned out to have cancer. “You allowed metastatic cancer to run amok for four months!” he screamed.

If this was what Dr. Bosk would have called a judgment error, the next case raised moral issues. A neurosurgeon had operated on a boy’s brain tumor without doing a complete family history, which would have revealed a disorder of blood clotting. The boy bled to death on the operating table. “The boy died,” announced the head surgeon, “because of a doctor’s arrogance.”

In one respect, it is good to see that the doctors in charge were so concerned. But as the study of medical errors expanded in the 1990s, researchers found that the likelihood of being blamed led physicians to conceal their errors. Meanwhile, although doctors who attended such conferences might indeed not make the exact same mistakes that had been discussed, it was far from clear that M&Ms were the best way to address the larger problem of medical errors, which, according to a 1999 study, killed close to 100,000 Americans annually.

Eventually, experts recommended a “systems approach” to medical errors, similar to what had been developed by the airline industry. The idea was to look at the root causes of errors and to devise systems to prevent them. Was there a way, for example, to ensure that the woman with the hip problem would return to medical care when the Tylenol did not help? Or could operations not be allowed to occur until a complete family history was in the chart? Increasingly, hospitals have put in systems, such as preoperative checklists and computer warnings, that successfully prevent medical errors.

Another key component of the systems approach is to reduce the emphasis on blame. Even the best doctors make mistakes. Impugning them publicly — or even privately — can make them clam up. But if errors are seen as resulting from inadequate systems, physicians and other health professionals should be more willing to speak up.

Of course, the systems approach is not perfect. Studies continue to show that physicians conceal their mistakes. And elaborate systems for preventing errors can at times interfere with getting things done in the hospital.

Finally, it is important not to entirely remove the issue of responsibility. Sad to say, there still are physicians who are careless and others who are arrogant. Even if today’s M&M conferences rarely involve screaming, supervising physicians need to let such colleagues know that these types of behaviors are unacceptable.

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Barron H. Lerner, M.D., professor of medicine at New York University Langone Medical Center, is the author, most recently, of “One for the Road: Drunk Driving Since 1900.”

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Personal Health: Effective Addiction Treatment

Countless people addicted to drugs, alcohol or both have managed to get clean and stay clean with the help of organizations like Alcoholics Anonymous or the thousands of residential and outpatient clinics devoted to treating addiction.

But if you have failed one or more times to achieve lasting sobriety after rehab, perhaps after spending tens of thousands of dollars, you’re not alone. And chances are, it’s not your fault.

Of the 23.5 million teenagers and adults addicted to alcohol or drugs, only about 1 in 10 gets treatment, which too often fails to keep them drug-free. Many of these programs fail to use proven methods to deal with the factors that underlie addiction and set off relapse.

According to recent examinations of treatment programs, most are rooted in outdated methods rather than newer approaches shown in scientific studies to be more effective in helping people achieve and maintain addiction-free lives. People typically do more research when shopping for a new car than when seeking treatment for addiction.

A groundbreaking report published last year by the National Center on Addiction and Substance Abuse at Columbia University concluded that “the vast majority of people in need of addiction treatment do not receive anything that approximates evidence-based care.” The report added, “Only a small fraction of individuals receive interventions or treatment consistent with scientific knowledge about what works.”

The Columbia report found that most addiction treatment providers are not medical professionals and are not equipped with the knowledge, skills or credentials needed to provide the full range of evidence-based services, including medication and psychosocial therapy. The authors suggested that such insufficient care could be considered “a form of medical malpractice.”

The failings of many treatment programs — and the comprehensive therapies that have been scientifically validated but remain vastly underused — are described in an eye-opening new book, “Inside Rehab,” by Anne M. Fletcher, a science writer whose previous books include the highly acclaimed “Sober for Good.”

“There are exceptions, but of the many thousands of treatment programs out there, most use exactly the same kind of treatment you would have received in 1950, not modern scientific approaches,” A. Thomas McLellan, co-founder of the Treatment Research Institute in Philadelphia, told Ms. Fletcher.

Ms. Fletcher’s book, replete with the experiences of treated addicts, offers myriad suggestions to help patients find addiction treatments with the highest probability of success.

Often, Ms. Fletcher found, low-cost, publicly funded clinics have better-qualified therapists and better outcomes than the high-end residential centers typically used by celebrities like Britney Spears and Lindsay Lohan. Indeed, their revolving-door experiences with treatment helped prompt Ms. Fletcher’s exhaustive exploration in the first place.

In an interview, Ms. Fletcher said she wanted to inform consumers “about science-based practices that should form the basis of addiction treatment” and explode some of the myths surrounding it.

One such myth is the belief that most addicts need to go to a rehab center.

“The truth is that most people recover (1) completely on their own, (2) by attending self-help groups, and/or (3) by seeing a counselor or therapist individually,” she wrote.

Contrary to the 30-day stint typical of inpatient rehab, “people with serious substance abuse disorders commonly require care for months or even years,” she wrote. “The short-term fix mentality partially explains why so many people go back to their old habits.”

Dr. Mark Willenbring, a former director of treatment and recovery research at the National Institute for Alcohol Abuse and Alcoholism, said in an interview, “You don’t treat a chronic illness for four weeks and then send the patient to a support group. People with a chronic form of addiction need multimodal treatment that is individualized and offered continuously or intermittently for as long as they need it.”

Dr. Willenbring now practices in St. Paul, where he is creating a clinic called Alltyr “to serve as a model to demonstrate what comprehensive 21st century treatment should look like.”

“While some people are helped by one intensive round of treatment, the majority of addicts continue to need services,” Dr. Willenbring said. He cited the case of a 43-year-old woman “who has been in and out of rehab 42 times” because she never got the full range of medical and support services she needed.

Dr. Willenbring is especially distressed about patients who are treated for opioid addiction, then relapse in part because they are not given maintenance therapy with the drug Suboxone.

“We have some pretty good drugs to help people with addiction problems, but doctors don’t know how to use them,” he said. “The 12-step community doesn’t want to use relapse-prevention medication because they view it as a crutch.”

Before committing to a treatment program, Ms. Fletcher urges prospective clients or their families to do their homework. The first step, she said, is to get an independent assessment of the need for treatment, as well as the kind of treatment needed, by an expert who is not affiliated with the program you are considering.

Check on the credentials of the program’s personnel, who should have “at least a master’s degree,” Ms. Fletcher said. If the therapist is a physician, he or she should be certified by the American Board of Addiction Medicine.

Does the facility’s approach to treatment fit with your beliefs and values? If a 12-step program like A.A. is not right for you, don’t choose it just because it’s the best known approach.

Meet with the therapist who will treat you and ask what your treatment plan will be. “It should be more than movies, lectures or three-hour classes three times a week,” Ms. Fletcher said. “You should be treated by a licensed addiction counselor who will see you one-on-one. Treatment should be individualized. One size does not fit all.”

Find out if you will receive therapy for any underlying condition, like depression, or a social problem that could sabotage recovery. The National Institute on Drug Abuse states in its Principles of Drug Addiction Treatment, “To be effective, treatment must address the individual’s drug abuse and any associated medical, psychological, social, vocational, and legal problems.”

Look for programs using research-validated techniques, like cognitive behavioral therapy, which helps addicts recognize what prompts them to use drugs or alcohol, and learn to redirect their thoughts and reactions away from the abused substance.

Other validated treatment methods include Community Reinforcement and Family Training, or Craft, an approach developed by Robert J. Meyers and described in his book, “Get Your Loved One Sober,” with co-author Brenda L. Wolfe. It helps addicts adopt a lifestyle more rewarding than one filled with drugs and alcohol.

This is the first of two articles on addiction treatment.

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Well: Warning Too Late for Some Babies

Six weeks after Jack Mahoney was born prematurely on Feb. 3, 2011, the neonatal staff at WakeMed Hospital in Raleigh, N.C., noticed that his heart rate slowed slightly when he ate. They figured he was having difficulty feeding, and they added a thickener to help.

When Jack was discharged, his parents were given the thickener, SimplyThick, to mix into his formula. Two weeks later, Jack was back in the hospital, with a swollen belly and in inconsolable pain. By then, most of his small intestine had stopped working. He died soon after, at 66 days old.

A month later, the Food and Drug Administration issued a caution that SimplyThick should not be fed to premature infants because it may cause necrotizing enterocolitis, or NEC, a life-threatening condition that damages intestinal tissue.

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Catherine Saint Louis speaks about using SimplyThick in premature infants.

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Experts do not know how the product may be linked to the condition, but Jack is not the only child to die after receiving SimplyThick. An F.D.A. investigation of 84 cases, published in The Journal of Pediatrics in 2012, found a “distinct illness pattern” in 22 instances that suggested a possible link between SimplyThick and NEC. Seven deaths were cited; 14 infants required surgery.

Last September, after more adverse events were reported, the F.D.A. warned that the thickener should not be given to any infants. But the fact that SimplyThick was widely used at all in neonatal intensive care units has spawned a spate of lawsuits and raised questions about regulatory oversight of food additives for infants.

SimplyThick is made from xanthan gum, a widely-used food additive on the F.D.A.’s list of substances “generally recognized as safe.” SimplyThick is classified as a food and the F.D.A. did not assess it for safety.

John Holahan, president of SimplyThick, which is based in St. Louis, acknowledged that the company marketed the product to speech language pathologists who in turn recommended it to infants. The patent touted its effectiveness in breast milk.

However, Mr. Holahan said, “There was no need to conduct studies, as the use of thickeners overall was already well established. In addition, the safety of xanthan gum was already well established.”

Since 2001, SimplyThick has been widely used by adults with swallowing difficulties. A liquid thickened to about the consistency of honey allows the drinker more time to close his airway and prevent aspiration.

Doctors in newborn intensive care units often ask non-physician colleagues like speech pathologists to determine whether an infant has a swallowing problem. And those auxiliary feeding specialists often recommended SimplyThick for neonates with swallowing troubles or acid reflux.

The thickener became popular because it was easy to mix, could be used with breast milk, and maintained its consistency, unlike alternatives like rice cereal.

“It was word of mouth, then neonatologists got used to using it. It became adopted,” said Dr. Steven Abrams, a neonatologist at Texas Children’s Hospital in Houston. “At any given time, several babies in our nursery — and in any neonatal unit — would be on it.”

But in early 2011, Dr. Benson Silverman, the director of the F.D.A.’s infant formula section, was alerted to an online forum where doctors had reported 15 cases of NEC among infants given SimplyThick. The agency issued its first warning about its use in babies that May. “We can only do something with the information we are provided with,” he said. “If information is not provided, how would we know?”

Most infants who took SimplyThick did not fall ill, and NEC is not uncommon in premature infants. But most who develop NEC do so while still in the hospital. Some premature infants given SimplyThick developed NEC later than usual, a few after they went home, a pattern the F.D.A. found unusually worrisome.

Even now it is not known how the thickener might have contributed to the infant deaths. One possibility is that xanthan gum itself is not suitable for the fragile digestive systems of newborns. The intestines of premature babies are “much more likely to have bacterial overgrowth” than adults’, said Dr. Jeffrey Pietz, the chief of newborn medicine at Children’s Hospital Central California in Madera.

“You try not to put anything in a baby’s intestine that’s not natural.” If you do, he added, “you’ve got to have a good reason.”

A second possibility is that batches of the thickener were contaminated with harmful bacteria. In late May 2011, the F.D.A. inspected the plants that make SimplyThick and found violations at one in Stone Mountain, Ga., including a failure to “thermally process” the product to destroy bacteria of a “public health significance.”

The company, Thermo Pac, voluntarily withdrew certain batches. But it appears some children may have ingested potentially contaminated batches.

The parents of Jaden Santos, a preemie who died of NEC while on SimplyThick, still have unused packets of recalled lots, according to their lawyer, Joe Taraska.

The authors of the F.D.A. report theorized that the infants’ intestinal membranes could have been damaged by bacteria breaking down the xanthan gum into too many toxic byproducts.

Dr. Qing Yang, a neonatologist at Wake Forest University, is a co-author of a case series in the Journal of Perinatology about three premature infants who took SimplyThick, developed NEC and were treated. The paper speculates that NEC was “most likely caused by the stimulation of the immature gut by xanthan gum.”

Dr. Yang said she only belatedly realized “there’s a lack of data” on xanthan gum’s use in preemies. “The lesson I learned is not to be totally dependent on the speech pathologist.”

Julie Mueller’s daughter Addison was born full-term and given SimplyThick after a swallow test showed she was at risk of choking. It was recommended by a speech pathologist at the hospital.

Less than a month later, Addison was dead with multiple holes in her small intestine. “It was a nightmare,” said Ms. Mueller, who has filed a lawsuit against SimplyThick. “I was astounded how a hospital and manufacturer was gearing this toward newborns when they never had to prove it would be safe for them. Basically we just did a research trial for the manufacturer.”

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Well: Gluten-Free for the Gluten Sensitive

Eat no wheat.

That is the core, draconian commandment of a gluten-free diet, a prohibition that excises wide swaths of American cuisine — cupcakes, pizza, bread and macaroni and cheese, to name a few things.

For the approximately one-in-a-hundred Americans who have a serious condition called celiac disease, that is an indisputably wise medical directive.

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Kenneth Chang speaks about gluten.

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Now medical experts largely agree that there is a condition related to gluten other than celiac. In 2011 a panel of celiac experts convened in Oslo and settled on a medical term for this malady: non-celiac gluten sensitivity.

What they still do not know: how many people have gluten sensitivity, what its long-term effects are, or even how to reliably identify it. Indeed, they do not really know what the illness is.

The definition is less a diagnosis than a description — someone who does not have celiac, but whose health improves on a gluten-free diet and worsens again if gluten is eaten. It could even be more than one illness.

“We have absolutely no clue at this point,” said Dr. Stefano Guandalini, medical director of the University of Chicago’s Celiac Disease Center.

Kristen Golden Testa could be one of the gluten-sensitive. Although she does not have celiac, she adopted a gluten-free diet last year. She says she has lost weight and her allergies have gone away. “It’s just so marked,” said Ms. Golden Testa, who is health program director in California for the Children’s Partnership, a national nonprofit advocacy group.

She did not consult a doctor before making the change, and she also does not know whether avoiding gluten has helped at all. “This is my speculation,” she said. She also gave up sugar at the same time and made an effort to eat more vegetables and nuts.

Many advocates of gluten-free diets warn that non-celiac gluten sensitivity is a wide, unseen epidemic undermining the health of millions of people. They believe that avoiding gluten — a composite of starch and proteins found in certain grassy grains like wheat, barley and rye — gives them added energy and alleviates chronic ills. Oats, while gluten-free, are also avoided, because they are often contaminated with gluten-containing grains.

Others see the popularity of gluten-free foods as just the latest fad, destined to fade like the Atkins diet and avoidance of carbohydrates a decade ago.

Indeed, Americans are buying billions of dollars of food labeled gluten-free each year. And celebrities like Miley Cyrus, the actress and singer, have urged fans to give up gluten. “The change in your skin, physical and mental health is amazing!” she posted on Twitter in April.

For celiac experts, the anti-gluten zeal is a dramatic turnaround; not many years ago, they were struggling to raise awareness among doctors that bread and pasta can make some people very sick. Now they are voicing caution, tamping down the wilder claims about gluten-free diets.

“It is not a healthier diet for those who don’t need it,” Dr. Guandalini said. These people “are following a fad, essentially.” He added, “And that’s my biased opinion.”

Nonetheless, Dr. Guandalini agrees that some people who do not have celiac receive a genuine health boost from a gluten-free diet. He just cannot say how many.

As with most nutrition controversies, most everyone agrees on the underlying facts. Wheat entered the human diet only about 10,000 years ago, with the advent of agriculture.

“For the previous 250,000 years, man had evolved without having this very strange protein in his gut,” Dr. Guandalini said. “And as a result, this is a really strange, different protein which the human intestine cannot fully digest. Many people did not adapt to these great environmental changes, so some adverse effects related to gluten ingestion developed around that time.”

The primary proteins in wheat gluten are glutenin and gliadin, and gliadin contains repeating patterns of amino acids that the human digestive system cannot break down. (Gluten is the only substance that contains these proteins.) People with celiac have one or two genetic mutations that somehow, when pieces of gliadin course through the gut, cause the immune system to attack the walls of the intestine in a case of mistaken identity. That, in turn, causes fingerlike structures called villi that absorb nutrients on the inside of the intestines to atrophy, and the intestines can become leaky, wreaking havoc. Symptoms, which vary widely among people with the disease, can include vomiting, chronic diarrhea or constipation and diminished growth rates in children.

The vast majority of people who have celiac do not know it. And not everyone who has the genetic mutations develops celiac.

What worries doctors is that the problem seems to be growing. After testing blood samples from a century ago, researchers discovered that the rate of celiac appears to be increasing. Why is another mystery. Some blame the wheat, as some varieties now grown contain higher levels of gluten, because gluten helps provide the springy inside and crusty outside desirable in bread. (Blame the artisanal bakers.)

There are also people who are allergic to wheat (not necessarily gluten), but until recently, most experts had thought that celiac and wheat allergy were the only problems caused by eating the grain.

For 99 out of 100 people who don’t have celiac — and those who don’t have a wheat allergy — the undigested gliadin fragments usually pass harmlessly through the gut, and the possible benefits of a gluten-free diet are nebulous, perhaps nonexistent for most. But not all.

Anecdotally, people like Ms. Golden Testa say that gluten-free diets have improved their health. Some people with diseases like irritable bowel syndrome and arthritis also report alleviation of their symptoms, and others are grasping at gluten as a source of a host of other conditions, though there is no scientific evidence to back most of the claims. Experts have been skeptical. It does not make obvious sense, for example, that someone would lose weight on a gluten-free diet. In fact, the opposite often happens for celiac patients as their malfunctioning intestines recover.

They also worried that people could end up eating less healthfully. A gluten-free muffin generally contains less fiber than a wheat-based one and still offers the same nutritional dangers — fat and sugar. Gluten-free foods are also less likely to be fortified with vitamins.

But those views have changed. Crucial in the evolving understanding of gluten were the findings, published in 2011, in The American Journal of Gastroenterology, of an experiment in Australia. In the double-blind study, people who suffered from irritable bowel syndrome, did not have celiac and were on a gluten-free diet were given bread and muffins to eat for up to six weeks. Some of them were given gluten-free baked goods; the others got muffins and bread with gluten. Thirty-four patients completed the study. Those who ate gluten reported they felt significantly worse.

That influenced many experts to acknowledge that the disease was not just in the heads of patients. “It’s not just a placebo effect,” said Dr. Marios Hadjivassiliou, a neurologist and celiac expert at the University of Sheffield in England.

Even though there was now convincing evidence that gluten sensitivity exists, that has not helped to establish what causes gluten sensitivity. The researchers of the Australian experiment noted, “No clues to the mechanism were elucidated.”

What is known is that gluten sensitivity does not correlate with the genetic mutations of celiac, so it appears to be something distinct from celiac.

How widespread gluten sensitivity may be is another point of controversy.

Dr. Thomas O’Bryan, a chiropractor turned anti-gluten crusader, said that when he tested his patients, 30 percent of them had antibodies targeting gliadin fragments in their blood. “If a person has a choice between eating wheat or not eating wheat,” he said, “then for most people, avoiding wheat would be ideal.”

Dr. O’Bryan has given himself a diagnosis of gluten sensitivity. “I had these blood sugar abnormalities and didn’t have a handle where they were coming from,” he said. He said a blood test showed gliadin antibodies, and he started avoiding gluten. “It took me a number of years to get completely gluten-free,” he said. “I’d still have a piece of pie once in a while. And I’d notice afterwards that I didn’t feel as good the next day or for two days. Subtle, nothing major, but I’d notice that.”

But Suzy Badaracco, president of Culinary Tides, Inc., a consulting firm, said fewer people these days were citing the benefits of gluten-free diets. She said a recent survey of people who bought gluten-free foods found that 35 percent said they thought gluten-free products were generally healthier, down from 46 percent in 2010. She predicted that the use of gluten-free products would decline.

Dr. Guandalini said finding out whether you are gluten sensitive is not as simple as Dr. O’Bryan’s antibody tests, because the tests only indicate the presence of the fragments in the blood, which can occur for a variety of reasons and do not necessarily indicate a chronic illness. For diagnosing gluten sensitivity, “There is no testing of the blood that can be helpful,” he said.

He also doubts that the occurrence of gluten sensitivity is nearly as high as Dr. O’Bryan asserts. “No more than 1 percent,” Dr. Guandalini said, although he agreed that at present all numbers were speculative.

He said his research group was working to identify biological tests that could determine gluten sensitivity. Some of the results are promising, he said, but they are too preliminary to discuss. Celiac experts urge people to not do what Ms. Golden Testa did — self-diagnose. Should they actually have celiac, tests to diagnose it become unreliable if one is not eating gluten. They also recommend visiting a doctor before starting on a gluten-free diet.

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This post has been revised to reflect the following correction:

Correction: February 4, 2013

An earlier version of this article misspelled the surname of Thomas O'Bryan. It is O'Bryan, not O'Brien.

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Concerns About A.D.H.D. Practices and Amphetamine Addiction

Before his addiction, Richard Fee was a popular college class president and aspiring medical student. "You keep giving Adderall to my son, you're going to kill him," said Rick Fee, Richard's father, to one of his son's doctors.

VIRGINIA BEACH — Every morning on her way to work, Kathy Fee holds her breath as she drives past the squat brick building that houses Dominion Psychiatric Associates.

Matt Eich for The New York Times

MENTAL HEALTH CLINIC Dominion Psychiatric Associates in Virginia Beach, where Richard Fee was treated by Dr. Waldo M. Ellison. After observing Richard and hearing his complaints about concentration, Dr. Ellison diagnosed attention deficit hyperactivity disorder and prescribed the stimulant Adderall.

It was there that her son, Richard, visited a doctor and received prescriptions for Adderall, an amphetamine-based medication for attention deficit hyperactivity disorder. It was in the parking lot that she insisted to Richard that he did not have A.D.H.D., not as a child and not now as a 24-year-old college graduate, and that he was getting dangerously addicted to the medication. It was inside the building that her husband, Rick, implored Richard’s doctor to stop prescribing him Adderall, warning, “You’re going to kill him.”

It was where, after becoming violently delusional and spending a week in a psychiatric hospital in 2011, Richard met with his doctor and received prescriptions for 90 more days of Adderall. He hanged himself in his bedroom closet two weeks after they expired.

The story of Richard Fee, an athletic, personable college class president and aspiring medical student, highlights widespread failings in the system through which five million Americans take medication for A.D.H.D., doctors and other experts said.

Medications like Adderall can markedly improve the lives of children and others with the disorder. But the tunnel-like focus the medicines provide has led growing numbers of teenagers and young adults to fake symptoms to obtain steady prescriptions for highly addictive medications that carry serious psychological dangers. These efforts are facilitated by a segment of doctors who skip established diagnostic procedures, renew prescriptions reflexively and spend too little time with patients to accurately monitor side effects.

Richard Fee’s experience included it all. Conversations with friends and family members and a review of detailed medical records depict an intelligent and articulate young man lying to doctor after doctor, physicians issuing hasty diagnoses, and psychiatrists continuing to prescribe medication — even increasing dosages — despite evidence of his growing addiction and psychiatric breakdown.

Very few people who misuse stimulants devolve into psychotic or suicidal addicts. But even one of Richard’s own physicians, Dr. Charles Parker, characterized his case as a virtual textbook for ways that A.D.H.D. practices can fail patients, particularly young adults. “We have a significant travesty being done in this country with how the diagnosis is being made and the meds are being administered,” said Dr. Parker, a psychiatrist in Virginia Beach. “I think it’s an abnegation of trust. The public needs to say this is totally unacceptable and walk out.”

Young adults are by far the fastest-growing segment of people taking A.D.H.D medications. Nearly 14 million monthly prescriptions for the condition were written for Americans ages 20 to 39 in 2011, two and a half times the 5.6 million just four years before, according to the data company I.M.S. Health. While this rise is generally attributed to the maturing of adolescents who have A.D.H.D. into young adults — combined with a greater recognition of adult A.D.H.D. in general — many experts caution that savvy college graduates, freed of parental oversight, can legally and easily obtain stimulant prescriptions from obliging doctors.

“Any step along the way, someone could have helped him — they were just handing out drugs,” said Richard’s father. Emphasizing that he had no intention of bringing legal action against any of the doctors involved, Mr. Fee said: “People have to know that kids are out there getting these drugs and getting addicted to them. And doctors are helping them do it.”

“...when he was in elementary school he fidgeted, daydreamed and got A’s. he has been an A-B student until mid college when he became scattered and he wandered while reading He never had to study. Presently without medication, his mind thinks most of the time, he procrastinated, he multitasks not finishing in a timely manner.”

Dr. Waldo M. Ellison

Richard Fee initial evaluation

Feb. 5, 2010

Richard began acting strangely soon after moving back home in late 2009, his parents said. He stayed up for days at a time, went from gregarious to grumpy and back, and scrawled compulsively in notebooks. His father, while trying to add Richard to his health insurance policy, learned that he was taking Vyvanse for A.D.H.D.

Richard explained to him that he had been having trouble concentrating while studying for medical school entrance exams the previous year and that he had seen a doctor and received a diagnosis. His father reacted with surprise. Richard had never shown any A.D.H.D. symptoms his entire life, from nursery school through high school, when he was awarded a full academic scholarship to Greensboro College in North Carolina. Mr. Fee also expressed concerns about the safety of his son’s taking daily amphetamines for a condition he might not have.

“The doctor wouldn’t give me anything that’s bad for me,” Mr. Fee recalled his son saying that day. “I’m not buying it on the street corner.”

This article has been revised to reflect the following correction:

Correction: February 3, 2013

An earlier version of a quote appearing with the home page presentation of this article misspelled the name of a medication. It is Adderall, not Aderall.

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Ferrol Sams, Doctor Turned Novelist, Dies at 90

Ferrol Sams, a country doctor who started writing fiction in his late 50s and went on to win critical praise and a devoted readership for his humorous and perceptive novels and stories that drew on his medical practice and his rural Southern roots, died on Tuesday at his home in Fayetteville, Ga. He was 90.

The cause, said his son Ferrol Sams III, also a doctor, was that he was “slap wore out.”

“He lived a full life,” his son said. “He didn’t leave anything in the tank.”

Dr. Sams grew up on a farm in the rural Piedmont area of Georgia, seven mud-road miles from the nearest town. He was a boy during the Depression; books meant escape and discovery. He read “Robinson Crusoe,” then Mark Twain and Charles Dickens. One of his English professors at Mercer University, in Macon, suggested he consider a career in writing, but he chose another route to examining the human condition: medical school.

When he was 58 — after he had served in World War II, started a medical practice with his wife, raised his four children and stopped devoting so much of his mornings to preparing lessons for Sunday school at the Methodist church — he began writing “Run With the Horsemen,” a novel based on his youth. It was published in 1982.

“In the beginning was the land,” the book begins. “Shortly thereafter was the father.”

In The New York Times Book Review, the novelist Robert Miner wrote, “Mr. Sams’s approach to his hero’s experiences is nicely signaled in these two opening sentences.”

He added: “I couldn’t help associating the gentility, good-humored common sense and pace of this novel with my image of a country doctor spinning yarns. The writing is elegant, reflective and amused. Mr. Sams is a storyteller sure of his audience, in no particular hurry, and gifted with perfect timing.”

Dr. Sams modeled the lead character in “Run With the Horsemen,” Porter Osborne Jr., on himself, and featured him in two more novels, “The Whisper of the River” and “When All the World Was Young,” which followed him into World War II.

Dr. Sams also wrote thinly disguised stories about his life as a physician. In “Epiphany,” he captures the friendship that develops between a literary-minded doctor frustrated by bureaucracy and a patient angry over past racism and injustice.

Ferrol Sams Jr. was born Sept. 26, 1922, in Woolsey, Ga. He received a bachelor’s degree from Mercer in 1942 and his medical degree from Emory University in 1949. In his addition to his namesake, survivors include his wife, Dr. Helen Fletcher Sams; his sons Jim and Fletcher; a daughter, Ellen Nichol; eight grandchildren; and nine great-grandchildren.

Some critics tired of what they called the “folksiness” in Dr. Sams’s books. But he did not write for the critics, he said. In an interview with the Georgia Writers Hall of Fame, Dr. Sams was asked what audience he wrote for. Himself, he said.

“If you lose your sense of awe, or if you lose your sense of the ridiculous, you’ve fallen into a terrible pit,” he added. “The only thing that’s worse is never to have had either.”

This article has been revised to reflect the following correction:

Correction: February 2, 2013

An earlier version of this obituary misstated the town in which Mr. Sams died. It was Fayetteville, Ga., not Lafayette, Ga.

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Auvi-Q Challenges EpiPen With a New Shape and Size

Twin brothers Eric and Evan Edwards grew up with serious food allergies and were under doctor’s orders to carry their medicine everywhere they went.

But as they entered their teenage years in suburban Virginia, they found the advice increasingly hard to follow. The device they carried to inject the medicine, known as an EpiPen, was shaped like a large felt-tip marker and they would frequently forget it. As the twins entered college, they found themselves thinking there had to be a better way.

This week, the brothers’ invention — a slimmer device shaped like a smartphone — hit pharmacy shelves nationwide, the culmination of a single-minded quest that began 15 years ago and ended in a $230 million licensing deal with the French pharmaceutical giant Sanofi.

The product, called the Auvi-Q, boldly challenges the superiority of the EpiPen at a time when food allergies among children and teenagers are on the rise. Sanofi and the Edwards brothers clearly hope it will appeal to a gadget-hungry generation with its compact, rectangular design and automated voice instructions that guide a user through the injection process. Both the Auvi-Q and EpiPen contain the drug epinephrine, which can halt a severe allergic reaction, known as anaphylaxis.

Evan Edwards said the device was special because it was designed by people who were intimately familiar with patients’ needs. “This wasn’t just an invention,” he said. “This was something that I knew I was going to carry with me every single day.”

Mylan Inc., which sells the EpiPen, has recently stepped up its marketing of the device and this week showed no signs of backing down. In an interview this week, Mylan’s chief executive took issue with claims that up to two-thirds of EpiPen users do not carry their devices, saying the company would take “appropriate action” to challenge the claims.

Heather Bresch, the chief executive, said she welcomed efforts by Sanofi to raise awareness about the dangers of severe allergic reactions. “However, we certainly don’t condone or find it acceptable to do it in a misleading way, and that’s what we believe they’re doing,” she said.

A spokeswoman for Sanofi said the company stood by its claims.

Energized by their idea to create a new epinephrine device, the twins split up to attend college but geared their studies to their single-minded goal. Evan chose engineering, studying at the University of Virginia. Eric pursued a medical path, eventually earning a doctorate in pharmaceutical sciences from Virginia Commonwealth University.

“We would choose our courses out of the undergraduate bulletin,” Eric said. “You take this; I’ll take that.”

One of the courses Evan chose was an invention and design class taught by Larry G. Richards, an engineering professor at the University of Virginia, where students were encouraged to share their ideas with each other. “Evan came to us early in the semester and said, ‘I’ve got this really great idea,’ ” Mr. Richards recalled. “He told us the idea and I said, ‘Evan, this is too good to share with the students in the class. You want to protect your intellectual property here.’ ”

Working with Mr. Richards and another professor, Evan continued to refine the idea, earning a grant for college inventors that provided initial start-up financing for their project. After college, the brothers founded a company, Intelliject, to bring their idea to market, relying on early investments from family and friends.

The product evolved as the years passed, retaining its rectangular profile but picking up other features along the way. Eric had the idea of adding voice instructions to help others use the device in situations where they might be too panicked to read written instructions. A retractable needle was also added later, with the thought that patients would be more comfortable if they didn’t have to see it.

Intelliject licensed the product to Sanofi in 2009, a deal that included an initial payment of $25 million and up to $205 million in future milestone payments and royalties. The Food and Drug Administration approved the Auvi-Q last summer.

The Auvi-Q has created a stir among allergy sufferers, including bloggers and others who have praised its compact design and “cool” factor. Sanofi also cited internal market surveys that show up to two-thirds of patients do not regularly carry their epinephrine injectors, and about half of parents said they feared others would not be able to properly use their child’s injector in the event of an emergency.

“Anaphylaxis is scary enough,” Evan Edwards said, referring to the severe reaction that can be set off by allergens. “But the treatment shouldn’t be.”

Ms. Bresch, the Mylan chief executive, noted that Sanofi did not provide studies showing users would be any more likely to carry the Auvi-Q. She also cited a marketing study conducted in Canada on Sanofi’s behalf that found 84 percent of participants knew how to use an auto-injector.

“EpiPen has been tried and true for 25 years,” Ms. Bresch said, and argued that her product’s distinctive shape worked to its advantage. “It’s not easily confused with a BlackBerry or your phone in your purse or your backpack.”

Other online commenters wondered if younger children might lose the Auvi-Q because of its size. It is smaller than a deck of cards.

Sanofi has set a price for the Auvi-Q that is comparable to the EpiPen, charging $240 for two auto-injectors and a training device. Lori Lukus, a Sanofi spokeswoman, said the company’s market research indicated that a “large percentage” of insurers would cover the product.

Still, the Auvi-Q faces long odds: several other companies have tried and failed to challenge the dominance of the EpiPen. Last year, the manufacturer of the only competing products on the market, the Adrenaclick and Twinject, announced it would stop making them.

One allergy specialist, Dr. Scott H. Sicherer, said the Auvi-Q could provide an alternative for patients who have complained over the years about the EpiPen’s bulky size. He said some have already asked about it.

“People might find it easier to have that in a pocket compared to carrying a giant Magic Marker,” said Dr. Sicherer, a researcher at the Jaffe Food Allergy Institute at Mount Sinai Medical Center in Manhattan.

Still, he noted that he had seen several EpiPen competitors come and go. In the past, when he presented patients with alternatives, “the patients have mostly been more comfortable taking the EpiPen.”

This article has been revised to reflect the following correction:

Correction: February 1, 2013

An earlier version of this article used an outdated company name on first reference. It is Sanofi, not Sanofi-Aventis. The company changed its name in 2011.

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Well: Waiting for Alzheimer's to Begin

My gray matter might be waning. Then again, it might not be. But I swear that I can feel memories — as I’m making them — slide off a neuron and into a tangle of plaque. I steel myself for those moments to come when I won’t remember what just went into my head.

I’m not losing track of my car keys, which is pretty standard in aging minds. Nor have I ever forgotten to turn off the oven after use, common in menopausal women. I can always find my car in the parking lot, although lots of “normal” folk can’t.

Rather, I suddenly can’t remember the name of someone with whom I’ve worked for years. I cover by saying “sir” or “madam” like the Southerner I am, even though I live in Vermont and grown people here don’t use such terms. Better to think I’m quirky than losing my faculties. Sometimes I’ll send myself an e-mail to-do reminder and then, seconds later, find myself thrilled to see a new entry pop into my inbox. Oops, it’s from me. Worse yet, a massage therapist kicked me out of her practice for missing three appointments. I didn’t recall making any of them. There must another Nancy.

Am I losing track of me?

Equally worrisome are the memories increasingly coming to the fore. Magically, these random recollections manage to circumnavigate my imagined build-up of beta-amyloid en route to delivering vivid images of my father’s first steps down his path of forgetting. He was the same age I am now, which is 46.

“How old are you?” I recall him asking me back then. Some years later, he began calling me every Dec. 28 to say, “Happy birthday,” instead of on the correct date, Dec. 27. The 28th had been his grandmother’s birthday.

The chasms were small at first. Explainable. Dismissible. When he crossed the street without looking both ways, we chalked it up to his well-cultivated, absent-minded professor persona. But the chasms grew into sinkholes, and eventually quicksand. When we took him to get new pants one day, he kept trying on the same ones he wore to the store.

“I like these slacks,” he’d say, over and over again, as he repeatedly pulled his pair up and down.

My dad died of Alzheimer’s last April at age 73 — the same age at which his father succumbed to the same disease. My dad ended up choosing neurology as his profession after witnessing the very beginning of his own dad’s forgetting.

Decades later, grandfather’s atrophied brain found its way into a jar on my father’s office desk. Was it meant to be an ever-present reminder of Alzheimer’s effect? Or was it a crystal ball sent to warn of genetic fate? My father the doctor never said, nor did he ever mention, that it was his father’s gray matter floating in that pool of formaldehyde.

Using the jarred brain as a teaching tool, my dad showed my 8-year-old self the difference between frontal and temporal lobes. He also pointed out how brains with Alzheimer’s disease become smaller, and how wide grooves develop in the cerebral cortex. But only after his death — and my mother’s confession about whose brain occupied that jar — did I figure out that my father was quite literally demonstrating how this disease runs through our heads.

Has my forgetting begun?

I called my dad’s neurologist. To find out if I was in the earliest stages of Alzheimer’s, he would have to look for proteins in my blood or spinal fluid and employ expensive neuroimaging tests. If he found any indication of onset, the only option would be experimental trials.

But documented confirmation of a diseased brain would break my still hopeful heart. I’d walk around with the scarlet letter “A” etched on the inside of my forehead — obstructing how I view every situation instead of the intermittent clouding I currently experience.

“You’re still grieving your father,” the doctor said at the end of our call. “Sadness and depression affect the memory, too. Let’s wait and see.”

It certainly didn’t help matters that two people at my father’s funeral made some insensitive remarks.

“Nancy, you must be scared to death.”

“Is it hard knowing the same thing probably will happen to you?”

Maybe the real question is what to do when the forgetting begins. My dad started taking 70 supplements a day in hopes of saving his mind. He begged me to kill him if he wound up like his father. He retired from his practice and spent all day in a chair doing puzzles. He stopped making new memories in an all-out effort to preserve the ones he already had.

Maybe his approach wasn’t the answer.

Just before his death — his brain a fraction of its former self — my father managed to offer up a final lesson. I was visiting him in the memory-care center when he got a strange look on his face. I figured it was gas. But then his eyes lit up and a big grin overtook him, and he looked right at me and said, “Funny how things turn out.”

An unforgettable moment?

I can only hope.

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Nancy Stearns Bercaw is a writer in Vermont. Her book, “Brain in a Jar: A Daughter’s Journey Through Her Father’s Memory,” will be published in April 2013 by Broadstone.

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Illness Walks the Runway

A top fashion designer quarantines a sneezing underling, forcing her to work in a closet. An industry P.R. executive makes colleagues douse their hands with Purell. Germ-phobic magazine editors are powerblasting offices with antiseptic wipes and Lysol.

Such is the dread gripping the fashion world as it prepares for New York Fashion Week, beginning Feb. 7, with a killer flu and a stomach-bug norovirus on the loose.

The eight-day event, when fashionistas from around the world pack into small spaces to attend runway shows and parties — only to cram onto the same flights and repeat the process in London, Milan and Paris — is always an occasion for sickness paranoia. In past years, sniffles in the front row could prompt icy stares and social ostracism.

But with this season’s flu panic, the fear is approaching hysteria. Stressed-out designers recoil in horror if someone coughs within earshot. Frail models shiver their way between fittings, terrified someone will spy their runny noses. And frenemies everywhere are reconsidering the wisdom of the double-cheek kiss, the standard greeting of the global fashion tribe. Air kissing seems safe for now.

“This will be the season where everyone in fashion becomes mysteriously nonaffectionate,” said Laura Brown, executive editor of Harper’s Bazaar. Staff members in her West 57th Street offices, she added, have been scouring doorknobs with sanitizing wipes. “We can give a nudge and a wink instead.”

To be fair, much of the paranoia is founded. According to the Centers for Disease Control and Prevention, deaths from the current flu season reached “epidemic” levels, in part because of an unusually severe flu strain. Adding to the flulike epidemic is a surging new strain of norovirus, which can cause sudden diarrhea and projectile vomiting, and the worst whooping cough outbreak in 60 years.

And while there is some evidence that the flu season has peaked almost everywhere in the country, except for the West Coast, flu activity continued to be high in New York through the week ending Jan. 19, as tracked by the C.D.C., and on the rise in parts of Europe including Italy. (Milan hosts a fashion week starting Feb. 20.)

Norovirus also seems to be surging abroad; it has reached epidemic levels in France, according to the latest report from the country’s doctor network Réseau Sentinelles, with more than one million French people visiting doctors for it in the past five weeks.

Yet even as flu season appears to be ebbing in New York, it remains a worry inside the fashion bubble. With sleep-deprived colleagues huddled in close quarters day and night, things can go viral quickly, especially in the petri dish that is Fashion Week.

“Fashion people are at risk for a variety of viral syndromes because they work long hours and they move in a pack,” said Dr. Robert Glatter, known in fashion circles for making house (or studio) calls.

Dr. Barry Cohen, whose primary-care office on Spring Street faces Marc Jacobs’s studios, says he has been bombarded with rheumy-eyed industry divas begging for quick fixes. “Fashion people touch each other all day, so they get exposed over and over,” he said.

And when the pack is moving fast and furious, it can’t slow down for the weak. “Fashion Week season is a nonstop assault on the immune system,” said Derek Blasberg, an editor at large for Harper’s Bazaar. “Early shows, late dinners, crammed into tents and airplanes: you don’t want to sit next to anyone coughing, because if you get sick, you’re screwed.”

The viral assault does not end with New York. “By the time we finish the New York shows, we’re already a wreck, because New York simply has too many shows,” said Mickey Boardman, editorial director of Paper magazine. “Then you get on a plane and hit the ground running in London, where there’s always fun parties. You’re eating French fries for dinner and drinking Cokes from your minibar, and your sleep patterns are messed up.”

“You’re putting your life at risk,” he added.

WHILE KEEPING THE WORLD trendy has its hazards, fashionistas have developed stylish tactics to avoid getting the bug. Many have dutifully gotten their flu shots. (It’s not too late, though it takes about two weeks to build up immunity — just in time for London Fashion Week.)

Others follow variations of what could be called the standard fashion-world starvation diet, whether it’s drinking large quantities of SmartWater fortified with packets of the vitamin supplement Emergen-C, or force-feeding themselves nothing but raw greens, like koalas munching eucalyptus leaves. Dr. Glatter says he has even treated some fashion people for diarrhea from eating too much kale.

Then there are the juicers. The designer Cynthia Rowley swears by Juice Press, the three-year-old Manhattan chain popular with fashion insiders for its 17-ounce $10 bottles of cold-pressed fruits and vegetables. “I’m addicted,” said Ms. Rowley, who added that she chugged the stuff with staff members when they were not taking spin classes en masse at SoulCycle.

“Nobody’s sick at my office,” she bragged dangerously. “We work in one room, so if one person drops, they take down the whole team.”

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