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Updated: Feb 1, 2026

Meta-Analysis of the Effectiveness and Safety of Shugan Jieyu Capsules for the Treatment of Insomnia
Published on: February 17, 2023
Definitions and epidemiology of insomnia
Isabelle Jaussent1, Charles Morin2, Yves Dauvilliers3
1Inserm - unité 1061, hôpital La Colombière, Montpellier, France.
Abstract:
Definitions and epidemiology of insomnia Complaints of poor sleep are numerous and frequent in the general population. One of the most important is insomnia. As it is a subjective complaint, it can be difficult to define and diagnose. Various nosologies propose a common definition even if no consensus has yet been reached. Insomnia may be associated to or be the consequence of various psychiatric and somatic comorbidities. The purpose of this article is to present various definitions used to diagnose insomnia and provide updated knowledge about its prevalence, incidence, determinants and consequences.
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