What causes insomnia?

Updated: Sep 11, 2018
  • Author: Jasvinder Chawla, MD, MBA; Chief Editor: Selim R Benbadis, MD  more...
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Answer

Many clinicians assume that insomnia is often secondary to a psychiatric disorder, However, a large epidemiologic survey showed that half of insomnia diagnoses were not related to a primary psychiatric disorder. [42] A diagnosis of insomnia does, however, increase the future risk for depression or anxiety. Insomnia may also be secondary to other disorders or conditions, or it may be a primary condition (see the image below).

Frequency of insomnia causes. Frequency of insomnia causes.

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