Research

Hormonal

Chronic insomnia combined with objectively measured short sleep duration (≤5 hours) significantly increases the risk of hypertension, whereas insomnia with normal sleep duration (>6 hours) does not.

If you have chronic insomnia, do not rely on how you feel about your sleep. Get an objective measure of your sleep duration (e.g., via actigraphy or sleep study). If you are sleeping less than 5 hours, your risk for high blood pressure is significantly elevated. This risk is not present if you sleep more than 6 hours despite the complaint. Treat this as a medical risk factor, not just a quality-of-life issue.

GoodQualifiesHIGH confidence
The presence of both insomnia and an objective sleep duration ≤ 5 h increased the risk for hypertension by about 500% (OR = 5.12., 95% CI 2.2–11.8) compared to the group without insomnia/poor sleep complaint and slept > 6 h.
Alexandros N. Vgontzas et al. · SLEEP · 2009

Why this rating

Large cross-sectional population-based study with rigorous adjustment for confounders, but cross-sectional design limits causal inference.

Source

Insomnia with Objective Short Sleep Duration is Associated with a High Risk for Hypertension

Alexandros N. Vgontzas et al. · SLEEP · 2009

DOI 10.1093/sleep/32.4.491

cross_sectional · n=1741Cited 754×
Read the paper
DOI resolved against Crossref · corpus check 2026-06-10

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