Folks who are lean are more likely to fidget, stand up or pace about than their moderately obese counterparts, according to a study of 20 self-identified couch potatoes conducted by researchers at the Mayo Clinic in Rochester, Minnesota. For 10 days scientists measured their subjects' every movement, using sensors embedded in specially designed underwear. The 10 lean participants were more active even after they were required to gain weight. Sorry, Mom, fidgeting is good for you.
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