What coffee does to your body Rob Beschizza 6:33 am Mon, Jul 20, 2015 Caffeine is the world’s most widely-used psychoactive drug. Four cups a day is, for average adults, about as much as it’s safe to take, because of the mildly unpleasant things it does to us.
Caffeine is the world’s most widely-used psychoactive drug. Four cups a day is, for average adults, about as much as it’s safe to take, because of the mildly unpleasant things it does to us.