Night owl (person)
Night owl is a term used to describe a person who tends to stay up until late at night. Another name for a night owl is evening person.
The term is derived from the primarily nocturnal habits of the owl. Usually, people who are night owls stay awake past midnight and extreme night owls may stay awake until just before or after dawn. Night owls tend to feel most energetic just before they go to sleep at night.
Some night owls have a preference or habit for staying up late, or stay up to work the night shift. Night owls who work the day shift often have a problem with being on time for work. Some night owls who have great difficulty adopting normal sleeping and waking times may have delayed sleep phase syndrome.
The opposite of a night owl is an early bird, a lark as opposed to owl, someone who tends to begin sleeping at a time that is considered early and also wakes early.
In several countries, early birds are called "A-people" and night owls are called "B-people".[1][2] Researchers traditionally use the terms morningness and eveningness.[3]
Prevalence
Discussions and studies about the prevalence of morning, evening and indifferent or intermediate chronotypes use different criteria and come to different results. Some ask what time people do go to sleep and wake up—others ask what time people would prefer to. A survey of over 400 adults showed approximately 15% morning people, 25% evening people, and 60% intermediates.[4]
See also
References
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External links
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de:Chronobiologie#Mensch es:Búho (persona) nl:Avondmens
ja:昼夜逆転生活- ↑ James, Kyle (01 March 2007). "Late Sleepers in Denmark Rally for Societal Change". Deutsche Welle. Retrieved 2009-11-01. Check date values in:
|date=(help) - ↑ Morris, Chris (14 June 2007). "Late risers unite in Denmark". BBC News Channel. Retrieved 2009-11-01.
- ↑ Horne JA, Östberg O (1976). "A self-assessment questionnaire to determine morningness-eveningness in human circadian rhythms". Int J Chronobiol. 4 (2): 97–110. PMID 1027738.
- ↑ Schur, Carolyn (1994). "excerpt". Birds of a Different Feather. Saskatoon, Canada: Schur Goode Associates. ISBN 0969819005. Retrieved 2009-07-20.
