Chronotype
Chronotype
Chronotype (/ˈkrɒnətaɪp/; from the Greek words χρόνος chronos "time" and τύπος typos "type") is a person's natural inclination in regard to the times of day when they sleep or when they are most alert or energetic.
Etymology
The term "Chronotype" is derived from the Greek words χρόνος chronos meaning "time" and τύπος typos meaning "type". It was first used in the field of Chronobiology, the science that examines periodic (cyclic) phenomena in living organisms and their adaptation to solar and lunar related rhythms.
Related Terms
- Circadian rhythm: The physical, mental, and behavioral changes that follow a daily cycle, responding primarily to light and darkness in an organism's environment.
- Sleep: A naturally recurring state of mind and body, characterized by altered consciousness, relatively inhibited sensory activity, reduced muscle activity and inhibition of nearly all voluntary muscles.
- Chronobiology: A field of biology that examines periodic (cyclic) phenomena in living organisms and their adaptation to solar and lunar related rhythms.
- Melatonin: A hormone that regulates sleep-wake cycles.
- Jet lag: A physiological condition which results from alterations to the body's circadian rhythms resulting from rapid long-distance trans-meridian (east–west or west–east) travel on high-speed aircraft.
See Also
External links
- Medical encyclopedia article on Chronotype
- Wikipedia's article - Chronotype
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