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Related Experiment Video

Updated: Jun 17, 2025

Measuring Neural Mechanisms Underlying Sleep-Dependent Memory Consolidation During Naps in Early Childhood
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Daytime Napping, Incident Atrial Fibrillation, and Dynamic Transitions With Dementia.

Chenglong Li1,2, Daijun He3,4,5,6,7, Chao Yang3,4,5,6,7,8

  • 1National Institute of Health Data Science at Peking University, Beijing, China.

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|August 6, 2024
PubMed
Summary

Frequent daytime napping increases atrial fibrillation (AF) risk and the transition to AF with dementia. Left ventricular ejection fraction mediates this association, suggesting napping is a potential screening indicator.

Keywords:
atrial fibrillationdaytime nappingdementiagenetic predispositionleft ventricular ejection function

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Area of Science:

  • Cardiology
  • Sleep Medicine
  • Epidemiology

Background:

  • Associations between napping and incident atrial fibrillation (AF) are unknown.
  • Few studies have explored dynamic transitions between AF and dementia.
  • The role of sleep behaviors in cardiovascular and neurological health requires further investigation.

Purpose of the Study:

  • To evaluate associations between napping and incident AF.
  • To examine dynamic transitions between AF and dementia.
  • To investigate the mediation pathway of left ventricular (LV) size and function.

Main Methods:

  • Utilized UK Biobank data from 476,588 participants.
  • Assessed napping frequency and other sleep behaviors.
  • Employed multistate survival analysis and cardiovascular magnetic resonance imaging for LV function.

Main Results:

  • Frequent napping correlated with a 1.17-fold increased AF risk, independent of other sleep behaviors.
  • LV ejection fraction mediated 26.2% of the association between napping and AF.
  • Frequent napping also increased the risk of transition from AF to AF with dementia comorbidity.

Conclusions:

  • Screening for napping may be important due to its association with incident AF and dementia.
  • Routine LV ejection fraction evaluations could help identify AF onset in habitual nappers.
  • Napping behavior warrants consideration in cardiovascular and dementia risk assessments.