Circadian Rhythm
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A Circadian Rhythm is an biological process that regulates the sleep-wake cycle and repeats roughly every 24 hours.
- AKA: Circadian Cycle.
- Example(s):
- Counter-Example(s):
- See: Endogeny, Entrainment (Chronobiology), Oscillation, Circadian Clock.
References
2022
- (Wikipedia, 2022) ⇒ https://en.wikipedia.org/wiki/Circadian_rhythm Retrieved:2022-10-16.
- A circadian rhythm, or circadian cycle, is a natural, internal process that regulates the sleep–wake cycle and repeats roughly every 24 hours.[1] It can refer to any process that originates within an organism (i.e., endogenous) and responds to the environment (entrained by the environment). These 24-hour rhythms are driven by a circadian clock, and they have been widely observed in animals, plants, fungi and cyanobacteria.[2]
The term circadian comes from the Latin circa, meaning "around", and dies, meaning "day". Processes with 24-hour cycles are more generally called diurnal rhythms; diurnal rhythms should not be called circadian rhythms unless they can be confirmed as endogenous, and not environmental.[3]
Although circadian rhythms are endogenous, they are adjusted to the local environment by external cues called zeitgebers (German for "time givers"), which include light, temperature and redox cycles. In clinical settings, an abnormal circadian rhythm in humans is known as a circadian rhythm sleep disorder.[4]
- A circadian rhythm, or circadian cycle, is a natural, internal process that regulates the sleep–wake cycle and repeats roughly every 24 hours.[1] It can refer to any process that originates within an organism (i.e., endogenous) and responds to the environment (entrained by the environment). These 24-hour rhythms are driven by a circadian clock, and they have been widely observed in animals, plants, fungi and cyanobacteria.[2]
- ↑ "What makes us sleep?". NICHD - Eunice Kennedy Shriver National Institute of Child Health and Human Development. Retrieved 6 May 2019.
- ↑ Edgar RS, Green EW, Zhao Y, van Ooijen G, Olmedo M, Qin X, et al. (May 2012). "Peroxiredoxins are conserved markers of circadian rhythms". Nature. 485 (7399): 459–64. Bibcode:2012Natur.485..459E. doi:10.1038/nature11088. PMC 3398137. PMID 22622569.
- ↑ Vitaterna MH, Takahashi JS, Turek FW (2001). "Overview of circadian rhythms". Alcohol Research & Health. 25 (2): 85–93. PMC 6707128. PMID 11584554.
- ↑ Bass J (November 2012). "Circadian topology of metabolism". Nature. 491 (7424): 348–56. Bibcode:2012Natur.491..348B. doi:10.1038/nature11704. PMID 23151577. S2CID 27778254.