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February 9, 2026BMC Public Health0 citationsOpen Access

Impact of nighttime sleep duration and daytime nap combinations on cardiovascular disease risk in middle-aged and older Chinese adults: a nationwide prospective cohort study

WXWenxiao XiongWLWanxin LiJXJiaoping Xue

Key Points

  • Investigate the relationship between sleep duration, napping, and cardiovascular disease (CVD) risk in middle-aged and older adults.
  • Nationwide prospective cohort design
  • Focused on middle-aged and older Chinese adults
  • Assessed combinations of nighttime sleep duration and daytime napping
  • Analyzed cardiovascular disease risk outcomes
  • Insufficient nighttime sleep combined with daytime napping generally increased CVD risk
  • Moderate napping with insufficient nighttime sleep did not elevate CVD risk
  • Findings suggest specific sleep patterns influence cardiovascular health

Abstract

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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Cite This Study

Xiong et al. (2026) studied this question.

synapsesocial.com/papers/698979c8f0ec2af6756e7bechttps://doi.org/10.1186/s12889-026-26516-z
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