title: Neurophysiology of sleep.
mesh_terms: D000531:Altitude; D001921:Brain / Q000166:cytology; D006801:Humans; D009424:Nervous System Physiological Phenomena; D009474:Neurons / Q000502:physiology; D012119:Respiration; D012890:Sleep / Q000502:physiology*; D012894:Sleep Stages / Q000502:physiology