eli5: What does it mean to “burn” Calories or fat?

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Little fires aren’t happening all up in our bodies…are they?

In: Biology

4 Answers

Anonymous 0 Comments

No, but your calories are energy and your body is using that energy. Think of it like you are burning fuel: like a fireplace, or a car. It’s really just a saying that was coined when most sources of energy came from burning. In our bodies it is a chemical reaction, not a fire, but the result is the same: a transfer of energy.

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