system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: Why do certain body muscles get stronger with stress and healing (including broken bones), but others like eye muscles get weaker?
gpt
It's a different type of stress, so to speak. If you over-exert yourself in any endurance training you will lose muscle mass as well. The reason it recovers and grows stronger is because you're pushing the muscles' limit for a brief period of time and letting it rest, while when you "exercise" your eyeballs you're doing nothing more than make them work for much longer periods of time than they can handle. If you go marathon running out of the box without proper escalation and without rest you will start the catabolic state and your leg muscles will get smaller (along with many others).