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Mon, 20 Feb 2017
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Assessing Eyesight and Ethnic Group Norms in Young Children

How common are vision disorders in infants and young children, and do rates differ by ethnic group? The Multi-Ethnic Pediatric Eye Disease Study (MEPEDS) based at the Doheny Eye Institute, University of Southern California Keck School of Medicine, is the first large study to consider these questions in preschool-aged children. Rohit Varma, MD, MPH, and colleagues report their findings on refractive error, the leading cause of vision problems in young children.

They studied the prevalence of myopia (nearsightedness), hyperopia (farsightedness) and anisometropia (a difference in refractive error between the two eyes) in more than 6,000 Hispanic and African American children (about 3,000 per ethnicity) aged 6 to 72 months.

Life Preserver

Seasick? Try Controlling Your Breathing

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© Pierre Denise
Sickening. The effects of controlled breathing were tested in this flight simulator.
If you get seasick easily, you may prepare for boat rides with pressure-point bracelets, ginger, or a prescription skin patch. Now there's one more remedy: timing your breathing to counteract the nauseating motion. The technique presumably works because it helps control gravity sensors in the abdomen--a lesser-known input to our fine-tuned balance system.

The brain is traditionally thought to sense body position in three ways. The inner ears sense motions of the head; the eyes see where the head is; and tiny sensory organs in muscles and tendons sense where the rest of the body is. More recently, researchers have realized that sensors in many other parts of the body also play a role: in the abdomen, the lower organs, and even blood vessels. As long as all of these sensors send matching signals to the brain, we feel oriented. But if one or two don't match up, the brain gets confused and we become nauseated.

Scientists knew the most sickening motions closely match the rate of natural breathing; they also knew that people naturally tend to breathe in time with a motion. In fact, Navy seamen in World War II discovered that they could use certain breathing tricks to combat motion sickness. But no one had ever tested whether breathing out of time with a motion could prevent nausea.

Health

TV, Social Networking and the Web Can Mean Soft Addictions

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© Evil Tv Wings Abstract
Watch me!
The last thing Jen Towner does before going to bed is log into her Facebook page.

The first thing she does after waking up is virtually check in with her friends again.

She keeps her page up and active all day, every day. It's a ritual, and Towner makes no apologies for it.

Suzanne Ricks' habit is TiVo.

After working all day as director of the day-care center at Four Mile Creek Baptist Church in Varina, Ricks comes home to a TV menu more appetizing than a meal: Dr. Oz and the national evening news to start, followed by whatever favorite shows happen to be on - The Mentalist, Dexter, NCIS, CSI.

She often has to delete shows before watching them because her TiVo, capable of recording up to 48 shows in high-definition, often only has 2 percent of space available because she records so much.

Ricks estimates her daily TV watching at about four hours - and that's with fast-forwarding through the commercials.

Now you're thinking, so they have hobbies. No one is getting hurt, so what's the big deal? Right?

Question

Guess Who Funds High Fructose Corn Syrup Studies?

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Ads hyping high fructose corn syrup (HFCS) have been hitting the airwaves as part of a major marketing campaign from the Corn Refiners Association.

Critics say HFCS contributes to weight gain and tricks your body into wanting to eat more. But the industry says it's just fine, and argues that HFCS is the same as sugar.

To get that message out, the campaign relies on nutritional research. But funding for many of the major studies in question came from companies with a financial stake in the outcome.

Out of the six studies on the Corn Refiners Association's Web site that "Confirm High Fructose Corn Syrup [is] No Different From Sugar," three were sponsored by groups that stand to profit from research that promotes HFCS. Two were never published, so their funding sources are unclear. And one was sponsored by a Dutch foundation that represents the interests of the sugar industry.

Pepsi funded one study. So did a D.C. based lobbying group that gets their money from food, chemical and drug companies. And the American Beverage Association gave a grant for another.

Sources:

CBS News October 1, 2008

Pills

Harvard recants, says swine flu oversold

A new analysis, using H1N1 deaths in the United States in the spring and projecting likely outcomes for this fall, shows that a typical -- or possibly even a milder flu season than average -- should have been expected.

The finding begs the question: Has swine flu been oversold?

The new study, done by researchers at Harvard University and the Medical Research Council Biostatistics Unit in the U.K., says swine flu cases in the spring indicated a flu season that might be, at worst, slightly worse than normal.

"It would have been great to have that back in June," said Philip Alcabes, an associate professor in the program in urban public health at Hunter College's School of Health Sciences. "There would have been one more bit of evidence behind my assertion six months ago" that people were overreacting to H1N1.

Bug

FDA Warning Letter to LSG SkyChefs -World's Second Largest Provider of Airline Catering Services

Yum.

At the conclusion of the inspection, on October 6, 2009, the FDA investigator issued a list of Inspectional Observations (FDA-483) to your firm. As documented on this form (copy enclosed), the following are the significant violations at your airline catering facility on which we base the "Provisional" classification:

- To comply with 21 CFR 1250.30(a), all places where food is prepared, served, or stored must be constructed and maintained as to be clean and free from flies and other vermin. However, our investigators observed numerous live roaches, dead roaches, and other insects, as well as food, and other debris, in various locations, including the following:

Magnify

Gluten: What You Don't Know Might Kill You

Something you're eating may be killing you, and you probably don't even know it!

If you eat cheeseburgers or French fries all the time or drink six sodas a day, you likely know you are shortening your life. But eating a nice dark, crunchy slice of whole wheat bread--how could that be bad for you?

Well, bread contains gluten, a protein found in wheat, barley, rye, spelt, kamut, and oats. It is hidden in pizza, pasta, bread, wraps, rolls, and most processed foods. Clearly, gluten is a staple of the American diet.

What most people don't know is that gluten can cause serious health complications for many. You may be at risk even if you don't have full blown celiac disease.

In today's blog I want to reveal the truth about gluten, explain the dangers, and provide you with a simple system that will help you determine whether or not gluten is a problem for you.

Cheeseburger

Ammonia-Treated Burgers, Tainted with E. Coli!

In Meat Wagon, we round up the latest outrages from the meat and livestock industries.


Magnify

High Fat Diet Increases Inflammation in the Mouse Colon

Colorectal cancer, the third most common type of cancer worldwide, has been linked to an increased prevalence of the Western diet: one high in fat and low in fiber, vitamin D and calcium. Now, a team of scientists led by researchers at Rockefeller University have shown what happens to colon tissue when mice are fed such a diet: an inflammatory response that could be the trigger for carcinogenic processes. Their results are published in the November 2009 issue of The Journal of Nutrition.

"There is convincing evidence that increased intake of red meat, processed meat and alcohol can increase risk of colorectal cancer, whereas greater consumption of dietary fiber, milk and calcium might decrease risk," says Peter Holt, a senior research associate in the Laboratory of Biochemical Genetics and Metabolism at Rockefeller. "Our findings show that a Western diet induces oxidative stress and alters immune responses in the colon of mice long before tumors occur."

The researchers fed experimental mice either a standard diet containing five percent fat and ample amounts of calcium and vitamin D or a Western diet containing 20 percent fat and adequate but marginal levels of calcium and vitamin D for three or six months.

Cookie

10 To 15 Percent Of Women May Be Affected By Disordered Eating

Several maladaptive eating behaviors, beyond anorexia, can affect women. Indeed, some 10 to 15 percent of women have maladaptive eating behaviours and attitudes according to new study from the Université de Montréal and the Douglas Mental Health University Institute published in the International Journal of Eating Disorders.

"Our results are disquieting," says Lise Gauvin, a professor at the Université de Montréal Department of Social and Preventive Medicine. "Women are exposed to many contradictory messages. They are encouraged to lose weight yet also encouraged to eat for the simple pleasure of it."