title: Sleep disturbances in the elderly.
mesh_terms: D000328:Adult; D000368:Aged; D000375:Aging; D014151:Anti-Anxiety Agents / Q000627:therapeutic use; D001569:Benzodiazepines; D004777:Environment; D005260:Female; D006801:Humans; D001523:Mental Disorders / Q000150:complications; D007319:Sleep Initiation and Maintenance Disorders / Q000188:drug therapy / Q000209:etiology; D012893:Sleep Wake Disorders / Q000175:diagnosis / Q000188:drug therapy / Q000209:etiology*; D012895:Sleep, REM / Q000502:physiology*
chemical_list: D014151:Anti-Anxiety Agents; D001569:Benzodiazepines