[Wakefulness-sleep alternation and biorhythms].
D000375:Aging; D000818:Animals; D001683:Biological Clocks; D002940:Circadian Rhythm; D006801:Humans; D012890:Sleep / Q000502:physiology*; D014851:Wakefulness / Q000502:physiology*
L'alternance veille-sommeil et les biorythmes.