If caffeine binds to the adenosine receptors in the brain does that mean coffee doesn’t wake you up but keeps you from getting more tired?

Question

Would this be classified as a biology question? XD

In: Biology

Answer 1

Adenosine is a so-called “tonic” neurotransmitter. In a simple sense, that means it is always present in higher or lower amounts in the body. So the Adenosine receptors are always a little bit activated, which always means you get a little more tired than you would be without the caffeine.

So Caffeine does absolutely wake you up, like all other psychostimulant drugs.