Outside time and inside time.
D001683:Biological Clocks; D001933:Brain Stem / Q000502:physiology; D002940:Circadian Rhythm; D006706:Homeostasis; D006801:Humans; D009038:Motion; D009424:Nervous System Physiological Phenomena; D011674:Pulse; D013028:Space Perception; D013315:Stress, Psychological; D009435:Synaptic Transmission; D013995:Time; D013998:Time Perception