Does caffeine make us have more energy even though it doesn’t have many calories? Does it make our bodies use up fat that is already stored? Where does the extra energy from caffeine come from?

Question

Does caffeine make us have more energy even though it doesn’t have many calories? Does it make our bodies use up fat that is already stored? Where does the extra energy from caffeine come from?

In: 2234

Answer 1

Caffeine is a vascoconstrictor, it narrows your blood vessels, the blood to your brain is contricted and thats what causes the alertness and awake feeling and then from there your body will do all sorts of things to counteract the lack of blood to your brain, extra cortisol production being one of them, in excess caffeine is not good r/decaf