eli5: Since caffeine doesn’t actually give you energy and only blocks the chemical that makes you sleepy, what causes the “jittery” feeling when you drink too much strong coffee?

Question

eli5: Since caffeine doesn’t actually give you energy and only blocks the chemical that makes you sleepy, what causes the “jittery” feeling when you drink too much strong coffee?

In: 5

Answer 1

My understanding is that caffeine blocks the receptors that would normally grab onto the chemicals that, when roaming free in your body cause you to release adrenaline, so your body releases a whole lot more adrenaline than normal, and *that is* what you feel.