Why does a sudden craving hit after smelling a fresh-baked brownie? Thousands of doctors are in New Orleans answering several behavior questions that are linked to the brain.
A big topic at the Society for Neuroscience Convention is the relationship of the brain to obesity. Research suggests that some brains are more attracted to smells and signs related to sweet and high-fat junk food, like the smell of those fresh-baked brownies or a blinking donut sign, making it harder to fight biology.
Meg Farris has more.