Caffeine's Effects are Addictive
People often say they are "addicted" to caffeine in much the same way they say they are "addicted" to shopping, working or television. The term "addiction" actually refers to a strong dependence on a drug characterized by severe withdrawal symptoms, tolerance to a given dose and the loss of control or the need to consume more and more of the substance at any cost. Addicts tend to exhibit anti-social behavior or even commit crimes to perpetuate the abuse. But consumers of caffeine-containing beverages do not fall into this category. According to the World Health Organization, "There is no evidence whatsoever that caffeine use has even remotely comparable physical and social consequences which are associated with serious drugs of abuse."