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  • Title: [Diagnosis and treatment in circadian rhythm sleep disorders].
    Author: Murakami J, Imai M, Yamada N.
    Journal: Nihon Rinsho; 2012 Jul; 70(7):1155-60. PubMed ID: 22844798.
    Abstract:
    Circadian rhythm sleep disorders (CRSD) are characterized by misalignment between major sleep episode and desired sleep phase, or symptoms associated with internal desynchronization between endogenous circadian rhythm and overt sleep-wake rhythm. Endogenous circadian rhythm is mainly regulated by master circadian clock located in the suprachiasmatic nucleus. Light entrains the circadian clock according to a phase-response curve. Furthermore, social time cue affects human sleep-wake rhythm. Instructions concerning sleep hygiene including light environment play fundamental role for the treatment in CRSD. In addition, light therapy and oral melatonin administration have application to delayed sleep phase type. Diagnostic classification and treatment in each types of CRSD are reviewed in this article.
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