Take a Nap
According to an article in the April 2012 issue of Good Housekeeping magazine, to resist 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 had earlier reported daytime sleepiness had lower activity in "willpower-regulating" areas of the brain than when they viewed salad or fruit photos. If you zzzz's get cut short, a siesta may help strengthen your resolve, says lead author William D.S. Killgore, Ph.D.