Junk Food Diet Causes Rats’ Brain Pleasure Centers To Become Progressively Less Responsive

ScienceDaily (2009-10-27) -- Brain pleasure centers became progressively less responsive in rats fed a diet of high-fat, high-calorie food, a new study has found. As the changes occurred, the rats developed compulsive overeating habits -- and became obese. The overeating continued even when it meant the rats had to endure an unpleasant consequence (a mild foot shock) in order to consume the food.

http://www.sciencedaily.com/releases/2009/10/091026231950.htm

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