Caffeine = Drug

Let’s get it straight: Caffeine is most certainly a drug. In fact, it is the world’s most consumed psychoactive drug, meaning that it changes brain function and results in alterations in perception, mood, consciousness or behavior. Caffeine is legal and unregulated in nearly all parts of the world. The definition of "drug," in the most common sense of the word, is: “a medicine or other substance which has a physiological effect when ingested or otherwise introduced into the body.” According to Erowid, caffeine is an alkaloid and acts as a stimulant of the central nervous system, cardiac (heart) muscle, and...