Looks like coffee will decrease lifespan by 20 years! Hehe.
But sometimes it feels like I have too low cortisol and I have to take a stimulant like coffee or go to a place surrounded with people. And if I drink green tea, pretty often I get drowsy and dizzy but calms me in crowded places. It never makes me dizzy when I take it with coffee. (Steeping teabag in coffee with some milk. It became my special drink because it really tasted like something special.)