gsfraley, 1 year ago (edited 1 year ago)

That’s factually false. Its main mechanism of action is adenosine antagonism, but it does cause a rise of blood adrenaline, as well as a release dopamine and norepinephrine to a handful of systems in the brain.

It’s true that it doesn’t improve mental acuity, and can leave you in an exhausted-but-anxious state, but saying it doesn’t actually stimulate you or wake you up is incorrect.