Tout dans la vie est une question d'équilibre d'où la nécessité de garder un esprit sain dans un corps sain.

Discipline-Volonté-Persévérance

Everything in life is a matter of balance therefore one needs to keep a healthy mind in a healthy body.

Discipline-Will-Perseverance.

E. do REGO

Friday, October 31, 2008

Obesity blamed for doubling rate of diabetes cases


ATLANTA – The nation's obesity epidemic is exacting a heavy toll: The rate of new diabetes cases nearly doubled in the United States in the past 10 years, the government said Thursday. The highest rates were in the South, according to the first state-by-state review of new diagnoses. The worst was in West Virginia, where about 13 in 1,000 adults were diagnosed with the disease in 2005-07. The lowest was in Minnesota, where the rate was 5 in 1,000.

Nationally, the rate of new cases climbed from about 5 per 1,000 in the mid-1990s to 9 per 1,000 in the middle of this decade.

Roughly 90 percent of cases are Type 2 diabetes, the form linked to obesity.

The findings dovetail with trends seen in obesity and lack of exercise — two health measures where Southern states also rank at the bottom.

"It isn't surprising the problem is heaviest in the South — no pun intended," agreed Matt Petersen, who oversees data and statistics for the American Diabetes Association.

The study, led by Karen Kirtland of the Centers for Disease Control and Prevention, provides an up-to-date picture of where the disease is exploding. The information should be a big help as the government and health insurance companies decide where to focus prevention campaigns, Petersen said.

Diabetes was the nation's seventh-leading cause of death in 2006, according to the CDC. More than 23 million Americans have diabetes, and the number is rapidly growing. About 1.6 million new cases were diagnosed among adults last year.

Type 2 diabetics do not produce or use insulin, a hormone needed to convert sugar into energy. The illness can cause sugar to build up in the body, leading to complications such as heart disease, blindness, kidney failure and poor circulation that leads to foot amputations.

The study involved a random-digit-dialed survey of more than 260,000 adults. Participants were asked if they had ever been told by a doctor that they have diabetes, and when the diagnosis was made. The comparisons between 1995-97 and 2005-07 covered only the 33 states for which the CDC had complete data for both time periods.

The researchers had data for 40 states for the years 2005-07.

West Virginia, South Carolina, Alabama, Georgia, Texas and Tennessee had the highest rates, all at 11 cases per 1,000 or higher. Puerto Rico was about as high as West Virginia. Minnesota, Hawaii and Wyoming had the lowest rates.

It is not entirely clear why some states were worse than others. Older people, blacks and Hispanics tend to have higher rates of Type 2 diabetes, and the South has large concentrations of all three groups. However, West Virginia is overwhelmingly white.

The report asked about diagnosed diabetes only. Because an estimated one in four diabetics have not been diagnosed, the findings probably underestimate the problem, said Angela Liese, a diabetes researcher at the University of South Carolina.

The underestimates may be particularly bad in the rural South and other areas where patients have trouble getting health care, she noted.

___

On the Net:

State-by-state rates: http://www.cdc.gov/mmwr/preview/mmwrhtml/mm5743a2.htm

Tuesday, October 28, 2008

CROSSFIT NATION 3

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source: www.crossfit.com

Wednesday, October 22, 2008

Speed of eating 'key to obesity'


Eating
Slow down!

Wolfing down meals may be enough to nearly double a person's risk of being overweight, Japanese research suggests.

Osaka University scientists looked at the eating habits of 3,000 people and reported their findings in the British Medical Journal.

Problems in signalling systems which tell the body when to stop eating may be partly responsible, said a UK nutrition expert.

He said deliberately slowing down at mealtimes might impact on weight.

The old wives' tale about chewing everything 20 times might be true - if you did take a bit more time eating, it could have an impact
Professor Ian McDonald
Nottingham University

The latest study looked at the relationship between eating speed, feelings of "fullness" and being overweight.

Just under half of the 3,000 volunteers told researchers they tended to eat quickly.

Compared with those who did not eat quickly, fast-eating men were 84% more likely to be overweight, and women were just over twice as likely.

Those, who, in addition to wolfing down their meals, tended to eat until they felt full, were more than three times more likely to be overweight.

Stomach signals

Professor Ian McDonald, from the University of Nottingham, said that there were a number of reasons why eating fast could be bad for your weight.

He said it could interfere with a signalling system which tells your brain to stop eating because your stomach is swelling up.

He said: "If you eat quickly you basically fill your stomach before your gastric feedback has a chance to start developing - you can overfill the thing."

He said that rushing meals was a behaviour that might have been learned in infancy, and could be reversed, although this might not be easy.

"The old wives' tale about chewing everything 20 times might be true - if you did take a bit more time eating, it could have an impact."

'Biological imperative

In an accompanying editorial, Australian researchers Dr Elizabeth Denney-Wilson and Dr Karen Campbell, said that a mechanism that helps make us fat today may, until relatively recently, have been an evolutionary advantage, helping us grab more food when resources were scarce.

They said that, if possible, children should be encouraged to eat slowly, and allowed to stop when they felt full up at mealtimes.

Dr Jason Halford, Director of the Kissileff Human Ingestive Behaviour Laboratory at the University of Liverpool, said that the way we eat was slowly being seen as a key area in obesity research, especially since the publication of studies highlighting a genetic variant linked to "feelings of fullness".

His own work, recently published in the Journal of Psychopharmacology, found that anti-obesity drug sibutramine worked by slowing down the rate at which obese patients ate.

He said: "What the Japanese research shows is that individual differences in eating behaviour underlie over-consumption of food and are linked to obesity.

"Other research has found evidence of this in childhood, suggesting that it could be inherited or learned at a very early age."

He said that there was no evidence yet that trying to slow down mealtimes for children would have an impact on future obesity rates.

http://news.bbc.co.uk/2/hi/health/7681458.stm