eli5 Why/how do muscles shrink?

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You get sore muscles when you train, because you muscle strings rip and when they heal, your muscles grow. As far as I know. So why and how do they shrink?

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Anonymous 0 Comments

Humans are adaptable. If they have a job that forces them to lift 200 lbs, they can do that. If they have a period of starvation, they can adapt to that as well. Not needing their large muscles and starving causes them to shrink so as to require less food.

Thats basically the why.

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