If you’ve been bodybuilding for any length of time, you’ve probably heard the following: “Training damages your muscles. Your muscles then repair, getting bigger and stronger in the process.” But is it really true? I dug into the science to find out.
Author’s note: This article is due for a major overhaul. There are a couple things in here I don’t entirely agree with anymore. Mainly pay attention to the mechanistic stuff (the importance of myonuclei and satellite cells), and its implications for “muscle memory.” Based on some more recent research, I’m less confident about time off […]