Actigraphy-based cohort of 12,400 adults followed for six years. Total sleep duration lost significance once regularity was in the model.
Sleep regularity, not duration, predicts incident hypertension
Variability in bedtime outperformed total sleep time as a predictor.
Finding
Each 30-minute increase in night-to-night bedtime variability was associated with 8% higher risk of incident hypertension.
References
- Circulation. 2026;149(11):1102–1113.