Posts Tagged ‘diet’

More on Obesity

Tuesday, January 10th, 2012 by American Senior Fitness Association   View This Issue of Experience!

Despite the very best of intentions, a New Year’s resolution to lose body fat may be more difficult for some people to fulfill than for others. New brain scan research indicates that in obese persons, neural activity in the brain may encourage over-eating. Writing in a recent issue of Science News, Janet Raloff explained the problem:

After a hungry person eats a meal, blood sugar glucose levels return to normal. In people of normal weight, this causes the shut-down of a neural system that promotes positive feelings toward food. It is the brain’s way of acknowledging satiation and signaling that the need for calories has been met. At that point, normal-weight persons stop eating.

But in obese persons, the system may not turn off following a meal. No matter how much they have just eaten, it still lights up at the sight of rich, high-calorie fare. This can occur even though blood sugar glucose levels have returned to normal. It may contribute to the persistence of obesity in some individuals who have tried and failed repeatedly to lose body fat.

Share

One Last Morsel of Wisdom

Friday, November 5th, 2010 by American Senior Fitness Association   View This Issue of Experience!

"He that takes medicine and neglects diet, wastes the skill of the physician."

     — Chinese Proverb

Share