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Is Insomnia Genetic?
- Heritability
- ~59%
- Inheritance
- polygenic
- Key genes
- MEIS1 RBFOX3 CLOCK
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Chronic difficulty sleeping with heritability ~59%. Genes in circadian rhythm and neurological pathways are implicated.
How Genetic Is Insomnia?
Insomnia involves complex interactions between multiple genes and environmental factors. Heritability estimates range up to 59%, though no single gene determines outcome on its own.
Key genes associated with Insomnia: MEIS1 RBFOX3 CLOCK. Variants in these genes have been identified through genome-wide association studies (GWAS) and clinical research as influencing susceptibility or severity.
Source: NIH
Does Family History Matter for Insomnia?
Family history can be informative for Insomnia, but its predictive power is limited because many genes — each with small effects — combine with environmental influences. A family history of the condition may prompt earlier or more frequent screening.
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