title: Sleep and aging.
mesh_terms: D000368:Aged; D000375:Aging; D002940:Circadian Rhythm; D004569:Electroencephalography; D005260:Female; D006801:Humans; D006993:Hypnotics and Sedatives / Q000627:therapeutic use; D008297:Male; D012727:Sex Characteristics; D012890:Sleep / Q000502:physiology*; D012894:Sleep Stages / Q000502:physiology; D012893:Sleep Wake Disorders / Q000503:physiopathology* / Q000628:therapy; D014851:Wakefulness / Q000502:physiology*
chemical_list: D006993:Hypnotics and Sedatives