Overview
Caffeine is the most commonly used drug in the world with as much as 90% of the global adult population consuming some version of it daily. On average, adults consume 200mg of caffeine per day, which is more than would be found in two 6-oz cups of coffee. Studies that attempt to measure the prevalence of dependence find that 8% to 20% of regular caffeine users meet the criteria of caffeine use disorder (CUD). 1
Commentary
I like caffeine.