Disease Proof

Obesity is a well known risk factor for certain physical health problems, but a new study suggests that heavy adults also have higher rates of psychiatric disorders.

Using data from a national health survey of more than 40,000 Americans, researchers found that obese adults were up to twice as likely to suffer from depression, anxiety and other mental health conditions as normal-weight adults.

In addition, even moderately overweight people had elevated rates of anxiety disorders, the study found.

Whether excess pounds somehow lead to mental health problems is not clear, according to the researchers. But the findings do indicate that a range of psychiatric disorders are more common among overweight people.

They also suggest that briefly screening obese patients for such conditions could be useful, lead researcher Dr. Nancy M. Petry told Reuters Health.

For more obesity news, check out DiseaseProof’s obesity category.

• Officials from Monterey County, California have issued a warning on all meat products. From The Monterey County Herald:

York company voluntarily recalled more than 286,000 pounds of its products.

Officials said certain products labeled Gourmet Boutique, Jan's and Archer Farms may be contaminated with Listeria monocytogenes, although there were no reports of illness before the recall.

Listeria can cause a potentially fatal disease that it is rarely contracted by healthy people, the Monterey County Health Department reported. Symptoms include high fever, severe headaches, neck stiffness and nausea. Rare but serious symptoms can occur in those with compromised immune systems. Pregnant women make up about a third of listeriosis cases, health officials said.

• According to the U.S. Centers for Disease Control and Prevention arthritis hits more than half of diabetics. HealthDay News reports:

Arthritis strikes more than half of the 20.6 million American adults who have diabetes, and the painful joint condition may be a barrier to exercise among these patients, a new government report shows.

Being physically active helps people manage both diseases better by controlling blood sugar levels and reducing joint pain, according to the report in the May 9 issue of Morbidity and Mortality Weekly Report, a publication of the U.S. Centers for Disease Control and Prevention.

"The prevalence of arthritis is astoundingly high in people with diabetes," said Dr. John H. Klippel, president and CEO of the Arthritis Foundation. "Over half the people with diabetes have arthritis."

• Stephen Smith of The Boston Globe examines ways seniors can prevent injury from a fall. Check it out:

Nudging reluctant seniors to take physical fitness classes represents just one strategy to reduce the risk of falling. It's also vital to evaluate their vision and the medications they're taking. Aged pupils, for example, don't dilate as well in darkness or constrict as well in brightness.

One study showed that falls decreased 34 percent among seniors who had the milky opaqueness of a cataract removed from their eyes. Some specialists also point to bifocals and trifocals, which can blur vision, as potentially contributing to falls.

It's also common for lighting to be so inadequate that navigation of hallways and rooms can be treacherous, said Dr. Gary Chu, vice president for community collaborations at the New England Eye Institute.

• Lance Armstrong is one of the people pushing a ban on smoking in public places across the United States. From the AFP:

"I've asked all the presidential candidates whether America should be smoke-free," he told a Senate committee hearing on how to tackle cancer.

"The consensus is that it's better left to the cities and states," he said, agreeing that state- or community-level bans were "the way to go."

"Second-hand smoking is something I'm very passionate about," he told the committee.

• It seems trees help kids breathe easier. More from The Chicago Tribune:

Young children who live in neighborhoods with lots of trees have lower rates of asthma than children who reside in areas with fewer trees, a new study finds. Researchers looked at asthma rates among children age 4 to 5 in New York City. Asthma rates decreased by almost one-quarter for every standard deviation increase in tree density, equivalent to 343 trees per square kilometer, the study found. The researchers said that trees may help reduce asthma rates by encouraging children to play outdoors more or by improving air quality.

• New research suggests that men might also get postpartum depression. WebMD is on it:

Male postpartum depression may have more negative effects on some aspects of a child's development than its female counterpart, says James F. Paulson, PhD, of the Center for Pediatric Research at the Eastern Virginia Medical School in Norfolk, Va.

Paulson and colleagues reviewed data on more than 5,000 two-parent families with children aged 9 months.

They found that one in 10 new dads met standard criteria for moderate to severe postpartum depression.

That's a "striking increase" from the 3% to 5% of men in the general population that have depression, Paulson tells WebMD.

• A new study has determined that firefighters show a higher risk of developing certain cancers. Reuters reports:

In the current study, researchers found that professional firefighters had higher-than-expected rates of colon cancer and brain cancer. There was also evidence, albeit weaker, that they had elevated risks of bladder and kidney cancers, as well as Hodgkin's lymphoma.

Dr. Letitia Davis with the Massachusetts Department of Public Health in Boston, and colleagues report the findings in the American Journal of Industrial Medicine.

Firefighters are exposed to many potentially cancer-causing chemicals released from burning materials. At the scene of the fire, toxic substances such as benzene, lead, uranium and asbestos can be inhaled or absorbed through the skin.

• According to research, weight-loss medications may harm children’s developing brains. Julie Steenhuysen of Reuters explains:

A drug from a new class of weight-loss treatments disrupted wiring needed for brain development in young mice, U.S. researchers said on Wednesday, raising concerns about using such medications in children.

Mark Bear and colleagues at the Massachusetts Institute of Technology studied the effects of a chemical that suppresses appetite by blocking cannabinoid receptors in the brain, the same brain mechanisms that make people hungry when they smoke marijuana.

"I think that the cautionary note is that these mechanisms play an important role in ... brain development," said Bear, whose study appears in the journal Neuron.

• Tara Parker-Pope of the Well blog wonders when breast biopsies aren’t necessary. Here’s a bit:

Even a benign lesion on a mammogram makes women and doctors nervous, and doctors sometimes recommend a biopsy anyway. But new data show that waiting six months for a follow-up mammogram is a safe option.

Researchers tracked more than 45,000 women who were given six-month follow-up mammograms after an initial scan found lesions that were “probably” benign. In most cases, they were. Only about one in 100 women were eventually diagnosed with cancer six to 12 months later, according to the study, which appears in the May issue of the American Journal of Roentgenology.

• New research indicates high blood sugar can lead to adverse pregnancy outcomes. Reuters is on it:

It is well known that high blood sugar levels indicative of the diabetes that occurs during pregnancy present risks for expectant mothers and their infants. The current study is believed to be the first to show that higher blood sugar levels -- not high enough to be considered diabetes -- also convey these increased risks.

In a study of nearly 24,000 pregnant women who had their blood sugar levels tested between 24 and 32 weeks of pregnancy, researchers found that the higher the mother's blood sugar level, the greater the chances that she would require Caesarean delivery and deliver an abnormally large baby.

The research adds weight to a stream of studies that have found obesity and other health problems in those who don't get proper shuteye, said Dr. Ron Kramer, a Colorado physician and a spokesman for the American Academy of Sleep Medicine.

"The data is all coming together that short sleepers and long sleepers don't do so well," Kramer said.

The study is based on door-to-door surveys of 87,000 U.S. adults from 2004 through 2006 conducted by the National Center for Health Statistics, part of the Centers for Disease Control and Prevention…

…Results were similar, though a bit less dramatic, for obesity: About 33 percent of those who slept less than six hours were obese, and 26 percent for those who got nine or more. Normal sleepers were the thinnest group, with obesity at 22 percent.

For alcohol use, those who slept the least were the biggest drinkers. However, alcohol use for those who slept seven to eight hours and those who slept nine hours or more was similar.

In another measure, nearly half of those who slept nine hours or more each night were physically inactive in their leisure time, which was worse even than the lightest sleepers and the proper sleepers. Many of those who sleep nine hours or more may have serious health problems that make exercise difficult.

Well, I guess set your alarm, but not TOO early!

Sun exposure is perhaps the most important source of vitamin D because exposure to sunlight provides most humans with their vitamin D requirement. The further you live from the equator, the longer you need to be exposed to the sun in order to generate vitamin D. Vitamin D is a fat-soluble vitamin that your body makes after exposure to ultraviolet (UV) rays from the sun. Vitamin D functions as a hormone because it sends a message to the intestines to increase the absorption of calcium and phosphorus.

Now, lack of vitamin D is being linked to depression in the elderly. The AFP reports:

"Underlying causes of vitamin D deficiency such as less sun exposure as a result of decreased outdoor activity, different housing or clothing habits and decreased vitamin intake may be secondary to depression, but depression may also be the consequence of poor vitamin D levels," the study, released Monday, said.

Researchers from Vrije Universiteit, Amsterdam, studied some 1,282 senior citizens aged between 65 and 95, and found 26 had major depression, while 169 suffered from minor depression.

Vitamin D levels were 14 percent lower in those elderly suffering from some kind of depression, according to the study published in the Archives of General Psychiatry.

It found that poor vitamin D status also led to an increase in levels of a hormone secreted by the parathyroid. Overactive parathyroid glands are frequently associated with depression.

I’m no doctor, but some extra sun exposure couldn’t hurt—right?

• Exercise, good for your body, good for your brain. Shari Roan of The Los Angeles Times reports:

When he became a psychiatrist in the 1970s, John Ratey didn't expect to evolve into an exercise buff. But today, the Harvard University professor and expert in attention-deficit hyperactivity disorder calls exercise the single most important tool people have to optimize brain function…

…Exercise, particularly aerobic exercise, can improve cognitive performance, soften the effects of stress, help fend off addiction-related cravings and tone down the negative consequences of women's hormonal changes, Ratey says. When it comes to psychiatric disorders, he calls exercise "one of the best treatments we have."

• Here’s a shocker. It seems antibiotics are over-prescribed for common viruses. Reuters reports:

Bacteria can cause rhinosinusitis -- an inflammation of the sinuses -- but a virus such as the common cold is often a more likely culprit so antibiotics seldom work, the researchers reported in the journal Lancet.

Yet doctors still dole out the drugs more than they should. In the United States, for instance, 80 percent of sinus patients are prescribed an antibiotic while the proportion ranges from 72 percent to 92 percent in Europe.

"What tends to happen in practice is when patients have had symptoms for a while and go see their family doctor, the doctor assumes they have a bacterial infection and gives them antibiotics," said James Young, a statistician at the University Hospital Basel, who led the study.

• You might think rich people are healthier, but the fat works against them. From Marilyn Elias of USA Today:

In the new study of about 5,000 adults, the college-educated with household incomes of more than $75,000 a year had much less of a blood protein linked to heart disease than did the poorer or less educated - as long as they weren't overweight.

But as weight crept up, so did C-reactive protein in the blood, a sign of inflamed tissue that can lead to blocked coronary arteries, says Cathy Bykowski, a psychologist at the University of South Florida in Tampa.

That's not surprising, because excess body fat is known to increase the protein, she says.

• Not getting enough sleep might mean having more than enough fat. Serena Gordon of HealthDay News explains:

New research suggests that people who don't get enough sleep tend to weigh more -- and that sleep can affect levels of the appetite-regulating hormones leptin and ghrelin.

"There is a dynamic balance between proper sleep and proper health. Sleep deprivation affects weight and a lot of other things. If you cheat sleep, there are a number of consequences, including affecting your hormones, appetite and mood," said Dr. Patrick Strollo, medical director of the University of Pittsburgh Medical Center's Sleep Medicine Center.

• Lego blocks are being used to help children with autism. Marie McCullough of The Philadelphia Inquirer reports:

At first glance, the $45 session just looked like a bunch of boys having fun, not surprising since Lego Club members have good language skills and average or above-average intelligence. In contrast, children at the severe end of the autism spectrum may be mute and have catatonic behaviors.

But signs of problems were soon evident. A boy wearing a long-sleeve T-shirt stood amid the hubbub, staring at the floor, obsessively pulling the hem of his shirt - until leader Greg Shugar gently drew him into an activity. At a table, Lily Brown, another leader, helped two boys revise their "script" - a sheet of lined paper covered with angry scratch-outs and scribbles.

Jonathan Shanahan, 13, of Riverton, rocked from foot to foot and acknowledged that earlier that day, in school, he threw a pencil at a classmate.

"He's my archrival," Jonathan declared, holding a winged Lego beast he had created.

• Findings have determined that breastfeeding helps reduce the risk of type-2 diabetes. More from Reuters:

Breast-fed babies appear to be less likely to develop type 2 diabetes when they reach adolescence, according to findings published in the medical journal Diabetes Care.

"Dramatic increases in childhood obesity and the emergence of type 2 diabetes in youth motivate research to identify lifestyle approaches to primary prevention of both conditions," write Dr. Elizabeth J. Mayer-Davis of the University of South Carolina, Columbia, and colleagues.

• Fitness Magazine spotlights some very important nutrients. Here some noteworthy ones. Take a look:

Folate
Use: To improve heart health

Why it works: Folate and other B vitamins help break down excess homocysteine -- an amino acid that can damage the inner lining of arteries -- possibly reducing the risk of heart disease.

Daily intake: 400 mcg

Best food sources: 1/2 cup cooked asparagus (134 mcg), 1 cup raw spinach (58 mcg), 1/2 cup cooked lentils (179 mcg)

• I’m not much of a cyclist, but this is a very practical invention—it’d be cool in the disco too—via TreeHugger:

• A team of scientists believe that vitamin D may cut diabetes risk. More from EMaxHealth:

Type 1 diabetes occurs because of pancreatic beta cell damage. These cells are responsible for insulin hormone production. The disease is becoming more common and it is expected to increase by 40% in 2010, compared to 2000.

The study showed that those suffering from type 1 diabetes have lower levels of vitamin D and are common in countries with less sunlight. It is well known that sunlight exposure stimulates vitamin D production and that supplement intake without sunlight exposure doesn't mean anything.

Lack of vitamin D is previously linked to autoimmune disorders, and this new study shows another key role of vitamins in health.

• According to a new study overweight women get worse breast cancer. Reuters is on it:

Breast cancer patients who are overweight have more aggressive disease and are likely to die sooner, U.S. researchers reported on Friday.

A dangerous type of breast cancer, known as inflammatory breast cancer, was seen in 45 percent of obese patients, compared with 30 percent of overweight patients and 15 percent of patients of healthy weight.

"The more obese a patient is, the more aggressive the disease," said Dr. Massimo Cristofanilli of the University of Texas M.D. Anderson Cancer Center, who led the study.

• Living healthfully can add years to your life, 14 years in fact. Maria Cheng of the Associated Press reports:

To get an extra 14 years of life, don't smoke, eat lots of fruits and vegetables, exercise regularly and drink alcohol in moderation.

That's the finding of a study that tracked about 20,000 people in the United Kingdom.

Kay-Tee Khaw of the University of Cambridge and colleagues calculated that people who adopted these four healthy habits lived an average of 14 years longer than those who didn't.

"We've known for a long time that these behaviors are good things to do, but we've never seen these additive benefits before," said Susan Jebb, head of Nutrition and Health at Britain's Medical Research Council, which helped pay for the study.

• If this makes you worry, then your problems are twofold, apparently anxiety may be bad for your heart. More from Lauran Neergaard of Associated Press:

Those Type A go-getters aren't the only ones stressing their hearts. Nervous Nelsons seem to be, too. Researchers reported Monday that chronic anxiety can significantly increase the risk of a heart attack, at least in men. The findings add another trait to a growing list of psychological profiles linked to heart disease, including anger or hostility, Type A behavior, and depression.

"There's a connection between the heart and head," said Dr. Nieca Goldberg of the New York University School of Medicine, a spokeswoman for the American Heart Association who wasn't involved in the study.

"This is very important research because we really are focused very much on prescribing medicine for cholesterol and lowering blood pressure and treating diabetes, but we don't look at the psychological aspect of a patient's care," she added. Doctors "need to be aggressive about not only taking care of the traditional risk factors ... but also really getting into their patients' heads."

• According to new research, low vitamin D can be tied to heart disease. John Fauber of the Milwaukee Journal Sentinel is on it:

Low levels of vitamin D, a chronic problem for many people in northern latitudes areas such as Wisconsin and Washington, were associated with substantially higher rates of heart disease and stroke, according to a new study.

In one of the strongest studies to date linking the vitamin to cardiovascular disease, researchers followed 1,739 members of the Framingham Offspring Study for more than five years.

They found the rate of cardiovascular disease events such as heart attacks, strokes and heart failure were from 53 percent to 80 percent higher in people with low levels of vitamin D in their blood.

"This is a stunning study," said John Whitcomb, medical director of the Aurora Sinai Wellness Institute in Milwaukee. He was not involved in the study.

• Apparently the movies make kids smoke—who knew? Alan Mozes of HealthDay News has more:

Young people who start smoking may be influenced to do so by movies they saw in early childhood, new research suggests.

What's more, the study found that almost 80 percent of the exposure to smoking scenes in movies came through films rated "G," "PG" and "PG-13."

"Movies seen at the youngest ages had as much influence over later smoking behavior as the movies that children had seen recently," said study author Linda Titus-Ernstoff, a pediatrics professor at Dartmouth Medical School.

"And I'm increasingly convinced that this association between movie-smoking exposure and smoking initiation is real," she added. "That's to say, causal. It is quite improbable that the association we see is due to some other influence, some other characteristic inherent in children or parental behavior. The relationship is clearly between movie-smoking and smoking initiation."

• The United States has ranked the worst in preventable death—we’re special! Will Dunham of Reuters reports:

France, Japan and Australia rated best and the United States worst in new rankings focusing on preventable deaths due to treatable conditions in 19 leading industrialized nations, researchers said on Tuesday.

If the U.S. health care system performed as well as those of those top three countries, there would be 101,000 fewer deaths in the United States per year, according to researchers writing in the journal Health Affairs.

Researchers Ellen Nolte and Martin McKee of the London School of Hygiene and Tropical Medicine tracked deaths that they deemed could have been prevented by access to timely and effective health care, and ranked nations on how they did.

They called such deaths an important way to gauge the performance of a country's health care system.

• China appears to be working real-real hard to improve food safety. More from Reuters:

China defended its fish farming industry on Tuesday and said it was making progress in curbing use of illegal additives, from pesticides to banned steroids, as the country's food safety record remains in the spotlight.

China has suffered a rash of scares over the safety of its food and manufactured products in the last year which highlighted shoddy oversight and prompted a wave of new regulations and clean-up campaigns from the central government.

Vice Minister of Agriculture Gao Hongbin said the country had made encouraging progress.

• Ladies, did you know? A girl’s social standing can affect her bodyweight. Diet Blog is on it:

Those who perceived they had low subjective social status had a 69% increased odds of having a 2-unit increase in BMI (this is around 11 pound weight increase).

The results were adjusted for a large number of factors including age, race/ethnicity, baseline BMI, diet, television viewing, depression, global and social self-esteem, menarche, height growth, mother's BMI, and pretax household income.

The study highlights yet another piece in the very complex obesity puzzle.

• Maureen Callahan of CookingLight looks at all the hubbub surround seafood safety and danger. Take a look:

A 2004 study in the journal Science raised concern among fish lovers with news that farm-raised salmon, the type found at most supermarkets, contained higher levels of cancer-causing pcbs than wild salmon. (Banned in the 1970s, PCBs still contaminate the environment. They are released by incinerators and toxic waste sites.) But two more recent studies, one on farm-raised salmon and the other on wild, found that both harbor similar levels of this pollutant. The first study, done with Chilean- and Canadian-farmed salmon, found an average of 11.5 parts per billion PCBs. The second, conducted by the Alaska Department of Environmental Conservation, sampled 600 wild salmon from the Gulf of Alaska and the Bering Sea, and found 8.2 to 10 parts per billion PCBs. It's important to realize that the amount of PCBs being talked about is very small, says Cornell University seafood specialist Ken Gall, who has studied fish safety issues for 22 years. "High doses of PCBs, like the kind of contamination that occurs with an industrial accident, can be dangerous," Gall says. "But it's uncertain whether the tiny amounts of PCBs found in many foods such as fish, meat, or milk can cause cancer."

We all know that SAD is short for standard America diet, but it also refers to Seasonal Affective Disorder. Never heard of it? Here’s how Wikipedia defines it:

Seasonal affective disorder (SAD), also known as winter depression, is an affective, or mood, disorder. Most SAD sufferers experience normal mental health throughout most of the year, but experience depressive symptoms in the winter or summer.

It might sound silly. Getting the blues because it’s dark outside, but Seasonal Affective Disorder is very much a part of the animal kingdom, and that includes humans. Richard A. Friedman, MD of The New York Times investigates:

Once regarded skeptically by the experts, seasonal affective disorder, SAD for short, is now well established. Epidemiological studies estimate that its prevalence in the adult population ranges from 1.4 percent (Florida) to 9.7 percent (New Hampshire).

Researchers have noted a similarity between SAD symptoms and seasonal changes in other mammals, particularly those that sensibly pass the dark winter hibernating in a warm hole. Animals have brain circuits that sense day length and control the timing of seasonal behavior…

…A major biological signal tracking seasonal sunlight changes is melatonin, a brain chemical turned on by darkness and off by light. Dr. Wehr and Dr. Rosenthal found that the patients with seasonal depression had a longer duration of nocturnal melatonin secretion in the winter than in the summer, just as with other mammals with seasonal behavior.

Dr. Fuhrman understands the challenge SAD can present. That’s why he recommends people use therapy lights. He sells them at DrFuhrman.com. Here’s why:

This Therapeutic Light contains the features that medical literature demonstrates are critical to the effectiveness of light therapy for Major Depressive Disorder, Dysthymia, Bipolar Depression, Seasonal Depressive Disorder, PMS, Insomnia, ADHD, ADD, and Bulimia Nervosa. Studies show that light therapy may also be helpful in Fibromyalgia and Post-partum Depression as well. It is recommended by the non–profit Center for Environmental Therapeutics (CET), and used exclusively in a new light therapy clinical program at Columbia University’s Presbyterian Hospital. In 2005 a meta–analysis of all randomized, controlled trials of light therapy found dawn stimulation with a bright light to be as effective for major depression as medications. Also, the results occur much more rapidly than drugs, with results noted in as little as one week.

In fact, Dr. Fuhrman will tell you firsthand. There are a lot of natural—non-pharmaceutical—therapies for depression. From Treating Depression Naturally:

With over a million prescriptions for antidepressants being filled each week and annual sales of 11 billion dollars at stake, it is unlikely that a new protocol for depressed people will emerge in America. Money usually dictates direction in the medical/drug/insurance industry. However, the conflict and controversy over the dangers of psychotropic medications used for depression, and the recent cardiac-related deaths from Ritalin prescribed for ADHD, are calling attention to the all-too-cozy relationship between government agencies and the drug industry. The public no longer can trust the validity of drug-related information that comes from even such formerly respected sources as medical journals and universities. These institutions depend increasingly on pharmaceutical dollars (advertising and grant monies), and this has led to numerous instances of inaccurate reports that conceal evidence and promote drug use…

… Natural therapies are surprisingly effective. Recent advances in non-pharmacologic treatments for depression can help people feel better—and even assist them in making total recovery—without dependence on medications. Researchers doing the studies in this field have been surprised to find that natural therapies can have very high success rates, rivaling those of drugs. Of particular interest is the fact that these non-pharmacologic treatments get results faster than drug treatments. Now is the time for all people with depression to give these safe, natural treatments a try. By combining the most promising facets of these approaches, the likelihood of improvement and recovery is greatly enhanced.

On a personal note, when I was a big fat load I loved the winter—a welcomed break from all the sweating—but now, I hate it! In fact, this fall was the first time I experienced some Seasonal Affective Disorder, so, despite the artic temperatures lately, I make sure I get plenty of sun.