In mice, calorie restriction reduces fat but increases fur

http://ift.tt/eA8V8J Calorie restriction may help mice stay slim and live longer, but it also means less fat to keep their bodies warm. Researchers in Brazil have found that mouse skin responds to caloric restriction by stimulating fur growth, increasing blood flow, and altering cell metabolism to increase energy efficiency. The study reveals that animals may use this as an evolutionary adaptation to stay warm -- and alive -- in limited food conditions.

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