Circadian Rhythm Disorders

Circadian rhythm sleep disorders can cause insomnia and excessive daytime sleepiness.

• Misalignment between the internal circadian timing system and the external environment is a key factor in these disorders.
• Physiological, behavioral, and environmental factors influence the clinical presentation of circadian rhythm sleep disorders.
• Current treatments mainly involve circadian synchronizing agents, such as light, to help realign the internal and external environment.
• The effectiveness of these treatments is limited by inadequate diagnostic tools and the lack of well-controlled clinical trials.
• A better understanding of the underlying processes of these disorders may aid in developing more effective treatments.

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