TAKE A NAP ... to resist the temptation.
Researchers from McLean Hospital in Belmont, MA, hooked people up to functional-MRI machines and showed them pictures of high-calorie goodies (like chocolate cake). Those who'd earlier reported daytime sleepiness had lower activity in "willpower-regulating" areas of the brain than when they viewed salad or fruit photos. If your zzz's get cut short, a siesta may help strenghen your resolve, says lead author William D.S. Killgore, PH.D.
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