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Circadian rhythm
(redirected from Circadian cycle)

    Also found in: Encyclopedia, Wikipedia, Hutchinson 0.49 sec.
circadian rhythm
n.
A daily rhythmic activity cycle, based on 24-hour intervals, that is exhibited by many organisms.
Circadian rhythm
Any body rhythm that recurs in 24-hour cycles. The sleep-wake cycle is an example of a circadian rhythm.
Mentioned in: Phototherapy, Sleep Disorders
circadian rhythm,
n person's biological patterns within a 24-hour cycle, circa a day. See also chronobiology.
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Other experiments demonstrated that inhibiting production of Timeless protein seriously compromised checkpoint-regulated coordination of cell division, "indicating an intimate connection between the circadian cycle and DNA damage checkpoints.
Timeless protein plays a role in coupling cell cycle and circadian ... by Phelps, Jerry / Environmental Health Perspectives
She points out that Drosophila become arrhythmic in response to constant light and revert to a circadian cycle when light and darkness alternate again.
Senior bees up all night caring for larvae by Milius, S. / Science News
The body's circadian cycle is a 24-hour cycle which controls functions such as body temperature, digestion and respiration and induces us to fall asleep at night and stay awake during daylight hours.
Shiftwork a challenge for aging worker by Ross, Ian / Northern Ontario Business
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