Daytime autonomic nervous system functions differ among adults with and without insomnia symptoms

Current Knowledge/Study Rationale: Point-of-care, quick, non-invasive biomarkers of autonomic arousal may have value for the purpose of subtyping those persons with insomnia who exhibit physiologic hyperarousal. Persons with hyperarousal may show differential response to cognitive behavioural therapy for insomnia vs hypnotic medications.

We found that autonomic nervous system assays differ between persons with no vs modest insomnia symptoms, and there was a high degree of correlation between autonomic nervous system indicators of hyperarousal with insomnia severity. Autonomic nervous system assays may have a role in subtyping persons with insomnia for the purpose of treatment planning.

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