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Circadian Disorders, Insomnia, and Parasomniasa 

Circadian Disorders, Insomnia, and Parasomniasa
Chapter:
Circadian Disorders, Insomnia, and Parasomniasa
Author(s):

Vichaya Arunthari

DOI:
10.1093/med/9780190244927.003.0100
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date: 16 October 2019

This chapter reviews circadian disorders, insomnias, and parasomnias. These are common sleep disorders encountered in clinical practice. Each requires a careful review of potential contributing factors and a multifaceted approach to treatment. Circadian rhythm disorders have a misalignment between a desired sleep schedule and the circadian sleep-wake rhythm. Insomnia is one of the most common medical complaints and increases in prevalence with age. Parasomnias are abnormal states of behavior and experience in which basic instincts are inappropriately unleashed during sleep; these experiential or physical phenomena are often undesirable and nondeliberate.

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