We are all guilty.
D000367:Age Factors; D004345:Drug Industry; D011307:Drug Prescriptions; D004358:Drug Therapy; D005059:Euphoria / Q000187:drug effects; D006801:Humans; D007858:Learning / Q000187:drug effects; D010361:Patients; D010600:Pharmacology; D010820:Physicians; D012922:Social Change; D019966:Substance-Related Disorders; D014481:United States