Today I read an interesting article in the Wall Street Journal (Eating to Live or Living to Eat? - WSJ.com) about why it is that some folks can't seem to resist certain foods while others can easily pass. Scientist studying sophisticated brain-imaging technology better understand how the lure of delicious food can overwhelm the body's built-in mechanism to regulate hunger and fullness, what's called "hedonic" versus "homeostatic" eating.
One thing is clear: Obese people react much more hedonistically to sweet, fat-laden food in the pleasure and reward circuits of the brain than healthy-weight people do. Simply seeing pictures of tempting food can light up the pleasure-seeking areas of obese peoples' brains.
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