Beer-drinking rats are smarter than you

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But weight-conscious people should heed the humble rat, which stays trim by instinctively cutting calories when indulging in alcoholic drinks, say researchers at the University of Florida’s psychology department and the Evelyn F. and William L. McKnight Brain Institute.

Rats also know how to say no to the brew, stopping at what would amount to two or three drinks in most people, according to a paper in the current issue of Pharmacology, Biochemistry and Behavior. Many people ignore the same instinct — a shortcoming that can spell dietary disaster.