title: Sleep-stage shifts in depressive illness.
mesh_terms: D000328:Adult; D003863:Depression / Q000150:complications*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D012894:Sleep Stages; D012893:Sleep Wake Disorders / Q000209:etiology*; D012895:Sleep, REM; D014851:Wakefulness