Key result
Short nighttime sleep with short napping linked to ~56% higher incident CVD risk.
Cohort (n=7,975)
Yes
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Nationwide cohort study shows how sleep patterns affect cardiovascular disease risk in older adults, implying the need for targeted sleep interventions.
Adequate nighttime sleep is associated with lower CVD risk. Most combinations of insufficient nighttime sleep and daytime nap increased CVD risk among middle-aged and older adults. However, the combination of insufficient nighttime sleep with moderate napping was not associated with increased CVD risk in this population. These results provide a scientific foundation for targeted sleep interventions and clinical guidance.
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Xiong et al. (2026) conducted a cohort in Cardiovascular disease risk (n=7,975). Short nighttime sleep (<6 h) combined with short daytime napping (≤0.5 h) vs. Moderate nighttime sleep (6 to <8 h) without daytime napping (0 h) was evaluated on Incident cardiovascular disease (self-reported physician-diagnosed heart attack, angina, coronary heart disease, heart failure, other heart problems, or stroke) (HR 1.558, 95% CI 1.236–1.962, p=<0.001). Short nighttime sleep (<6 h) with short napping (≤0.5 h) increased incident CVD risk compared to moderate sleep without napping (HR 1.558, 95% CI 1.236–1.962, P<0.001), unlike moderate napping.
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