Researchers at the Mayo Clinic measured the movements and body postures of 20 sedentary people: half were lean, half obese. They discovered that the obese out-sat the lean by more than two hours a day, thus conserving about 350 calories. Ten days of this behavior could produce a weight gain of one pound.
Thinking that the overweight sat still because they were fat, researchers put them on a weight-loss diet for two months while the lean individuals were overfed. Even after losing 16 pounds, the obese sat just as much as ever. After gaining eight pounds, the lean fidgeted as much as they always had.
Researchers reached two conclusions: Obesity occurs when energy intake exceeds energy expenditure, and any activity is better than just sitting around.
UC Berkeley Wellness Letter
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