Key To Muscle Fitness Revealed By Differences Between 'Marathon Mice' And 'Couch Potato Mice' Reveal

Researchers discovered that small pieces of genetic material called microRNAs link the two defining characteristics of fit muscles: the ability to burn sugar and fat and the ability to switch between slow- and fast-twitch muscle fibers. The team used two complementary mouse models - the "marathon mouse" and the "couch potato mouse" - to make this discovery. But what's more, they also found that active people have higher levels of one of these microRNAs than sedentary people... via Health News from Medical News Today Read More Here..

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