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Circadian Rhythms

2020
Circadian rhythms are endogenous, near 24-hour oscillations that underlie nearly all facets of our health and behavior. The daily cycle of sleep and wake is the most conspicuous circadian-influenced behavior in humans. This chapter introduces the circadian rhythms in humans that give rise to our daily cycling of sleep and alertness, including their ...
Joyce, Daniel S., Zeitzer, Jamie M.
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Circadian Rhythm Disorders

Seminars in Neurology, 2004
Circadian rhythm sleep disorders occur when individuals attempt to sleep at the wrong circadian time. The misalignment between the internal circadian timing system and the external environment is typically due to either an alteration in the functioning of the circadian timing system (e.g., delayed or advanced sleep phase disorder) or to changes in the ...
Phyllis C. Zee, Kathryn J. Reid
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Circadian rhythm and epilepsy

The Lancet Neurology, 2018
Advances in diagnostic technology, including chronic intracranial EEG recordings, have confirmed the clinical observation of different temporal patterns of epileptic activity and seizure occurrence over a 24-h period. The rhythmic patterns in epileptic activity and seizure occurrence are probably related to vigilance states and circadian variation in ...
Tobias Loddenkemper   +7 more
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Circadian rhythms

The American Journal of Medicine, 1988
All forms of life, from the simplest cells to the most complex organisms, show periodicity in some of their biologic activities and functions. The most common of these rhythmic events are those that we refer to as "circadian" (circa, around; dias, day).
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Circadian rhythms

2015
Due to the daily rotation of the Earth on its axis, nearly all organisms are exposed to daily cycles of environmental factors, including the intensity and quality of light, temperature, and other abiotic or physical factors, as well as changes in biotic factors such as presence of predators, competitors, and food.
Vincent M. Cassone, Vinod Kumar
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