04/09/2014 09:11 am ET Updated Apr 09, 2014

Are You Programmed To Enjoy Exercise?

Maurizio Borsari/Aflo via Getty Images

It’s possible that some of us are born not to run. According to an eye-opening new genetics study of lab rats, published in The Journal of Physiology, the motivation to exercise — or not — may be at least partly inherited.

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