The Z-factor; how sleep makes you bigger and stronger

Catching some shut eye, studying the back of your eyelids, counting sheep, catching some zzzz’s; no matter how we put it, we all need our sleep. Since the beginning of time, humans have required sleep, and a fair amount of it. We all know how not getting enough sleep can affect us. What we may not stop to realize is how important sleep is to people who exercise regularly and how it can help repair damaged muscles.

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