eli5: How does the body store power

Question

eli5: How does the body store power

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Answer 1

In the long term, the body stores energy in fat. Fat is a kind of cell that exists to store caloric energy for later use. If you eat a bunch of potato chips and don’t exercise, your body breaks down the carbohydrates into more simple sugars for the muscles to use, but you don’t use them. So the excess are picked up and held by fat cells.

If you go through a period where you don’t eat a lot and do a lot of work, then your muscles burn off a lot of sugar, and the fat cells release more into the body to compensate.