The sleep function and sleep disturbances.
D001341:Autonomic Nervous System / Q000502:physiology*; D001826:Body Fluids; D004194:Disease; D006801:Humans; D009424:Nervous System Physiological Phenomena; D012890:Sleep; D012893:Sleep Wake Disorders
AUTONOMIC NERVOUS SYSTEM/physiology; BODY FLUIDS; DISEASE; SLEEP; SLEEP DISORDERS