eli5 why is exercise supposed to make you tired if atp is not stored?

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I read that atp is produced constantly as needed and that you can only store about a minutes worth, so how is exercise supposed to make you tired and sleepy if you’re not using up your energy?

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Anonymous 0 Comments

ATP can be considered more analogous to electricity instead of energy storage. So it’s like asking why your phone runs out of electricity when it’s constantly being made by your battery.

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