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The link between sleep duration and stroke risk.

Yu Cheng^1,2, Yuchuan Ding³, Ahmed Elmadhoun⁴

¹Luhe Institute of Neuroscience, Capital Medical University, Beijing, China.

Brain Circulation

|April 14, 2025

Summary

This summary is machine-generated.

Both too little and too much sleep increase stroke risk, indicating a U-shaped relationship. Optimal sleep duration is crucial for cerebrovascular disease prevention strategies.

Keywords:

Cardiovascular health and neurovascular integrity Mendelian randomization studies excessive and insufficient sleep observational

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Area of Science:

Neurology
Sleep Medicine
Cardiovascular Science

Background:

Stroke is a leading cause of disability and death worldwide.
Sleep duration is increasingly recognized as a modifiable risk factor for cardiovascular outcomes.
Existing research suggests a complex, non-linear association between sleep duration and stroke risk.

Purpose of the Study:

To review the current evidence on the relationship between sleep duration and stroke risk.
To explore the potential mechanisms linking sleep duration to cerebrovascular diseases.
To identify methodological challenges and future research directions in this field.

Main Methods:

Comprehensive literature review of cohort studies, meta-analyses, and Mendelian randomization studies.
Analysis of direct and indirect effects of sleep duration on stroke risk factors.
Discussion of methodological limitations, including sleep measurement techniques.

Main Results:

Both short sleep duration (insufficient sleep) and long sleep duration (excessive sleep) are associated with an increased risk of stroke.
A U-shaped relationship exists between sleep duration and cardiovascular outcomes, including stroke.
Factors like atherosclerosis, atrial fibrillation, hypertension, and hyperlipidemia mediate the effects of sleep duration on stroke risk.

Conclusions:

Sleep duration is a significant, modifiable factor in stroke prevention.
Healthcare professionals should proactively assess and manage sleep patterns in patients to mitigate stroke risk.
Further research is needed to elucidate precise mechanisms and establish objective sleep assessment protocols.