Caffeine has almost no calories, but it gives us energy. Where does this energy come from? Is caffeine making the body use its stored fat?

Question

Caffeine has almost no calories, but it gives us energy. Where does this energy come from? Is caffeine making the body use its stored fat?

In: Chemistry

Answer 1

Caffeine doesn’t give you energy in a science sense. It affects the your brain works to make you feel more alert. There’s a chemical that builds up in our brain, making us tired. When you sleep, it goes back down and you feel more alert. Caffeine stops this chemical from building up so you don’t feel tired.