title: The volitional disorders.
mesh_terms: D000437:Alcoholism / Q000523:psychology; D002110:Caffeine; D002241:Carbohydrates; D000697:Central Nervous System Stimulants; D001068:Feeding and Eating Disorders / Q000523:psychology; D006213:Hallucinogens; D006801:Humans; D006993:Hypnotics and Sedatives; D009294:Narcotics; D009765:Obesity / Q000523:psychology; D010554:Personality Disorders / Q000523:psychology*; D012907:Smoking / Q000523:psychology; D019966:Substance-Related Disorders / Q000523:psychology
chemical_list: D002241:Carbohydrates; D000697:Central Nervous System Stimulants; D006213:Hallucinogens; D006993:Hypnotics and Sedatives; D009294:Narcotics; D002110:Caffeine