Sleep disorders in the elderly. Circadian rhythm.
Circadian rhythms are observable in almost every neuroendocrine, behavioral, and psychophysiologic function, in addition to the classic vital signs. This article discusses how the circadian system might change with advanced age, how these changes interact with behavior changes, and how the resultant effects might influence sleep and daytime functioning.
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Sleep Evaluation Center, University of Pittsburgh School of Medicine, Pennsylvania.
D000368:Aged; D000375:Aging / Q000502:physiology*; D002940:Circadian Rhythm; D006801:Humans