title: Circadian variation of sleep tendency in elderly and young adult subjects.
mesh_terms: D000328:Adult; D000367:Age Factors; D000368:Aged; D001831:Body Temperature; D002940:Circadian Rhythm; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D008954:Models, Biological; D012890:Sleep / Q000502:physiology; D012894:Sleep Stages / Q000502:physiology; D013223:Statistics as Topic