title: Motives for drug use among light and heavy users.
mesh_terms: D000328:Adult; D000661:Amphetamine; D001007:Anxiety; D001463:Barbiturates; D002188:Cannabis; D003042:Cocaine; D003405:Creativity; D003863:Depression; D005106:Exploratory Behavior; D005239:Fear; D006213:Hallucinogens; D006801:Humans; D007266:Inhibition, Psychological; D008297:Male; D001523:Mental Disorders; D009042:Motivation; D009326:Naval Medicine; D009892:Opium; D010990:Pleasure-Pain Principle; D012651:Self Medication; D012725:Sexual Behavior; D012925:Social Conformity; D019966:Substance-Related Disorders; D014481:United States
chemical_list: D001463:Barbiturates; D006213:Hallucinogens; D009892:Opium; D000661:Amphetamine; D003042:Cocaine