The muscles of obese rats don't change during weight gain to support their bigger bodies. The finding could shed light on the problems some overweight rats and humans have exercising.
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Read the complete post at http://www.npr.org/blogs/health/2011/05/12/136213307/why-doesnt-the-fat-rat-want-to-go-out-and-play?ft=1&f=103537970
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May 12 2011, 09:05 AM
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NPR Blogs: Shots - Health Blog