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

Is this eli5 or askabiologist?