eli5 What happens to muscles when you stop exercising and is it hard to get them back?

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What happens to your muscles when you stop exercising? Do they automatically start shrinking when after a week of not going to the gym? If muscles are formed when torn fibers heal, how is it possible that they shrink again? The tears still occurred so how can they just shrink? Also is it harder to get those muscles again after you quit going to the gym?

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Anonymous 0 Comments

Muscles are expensive for the body to maintain. If you quit using them, your body will break them down because it doesn’t think you need them anymore and it can better use the resources it uses to maintain them elsewhere.

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