If caffeine works by blocking the receptors that make you feel tired, why does too much caffeine cause you to feel “wired”?

Question

Shouldn’t you just max out at feeling perfectly alert/rested?

In: Biology

Answer 1

caffeine only makes me feel worse than i already do naturally. unless i’m on adderall hahah

Answer 2

There is an interesting book which has a chapter about caffeine’s effect on the brain. https://www.goodreads.com/book/show/34466963-why-we-sleep
Helped me understand a lot about it. Made.me stop drinking coffee after lunchtime.