Where does the energy we use in our body go?

Question

I know that moving my arm requires energy, and energy is not created or destroyed. I know the energy isn’t just disappearing but I know it’s not in my body still because I can run out of energy. Where does the energy I lose go?

In: Biology

Answer 1

If you’re moving your muscles, some of the energy goes into the thing you’re moving.

Some goes into chemicals you synthesize in your body.

And the vast majority ends up as heat which we dump to the environment.