Napping Linked to Heart Health: Benefits and Risks Explored

A growing body of research suggests that short naps may offer significant benefits for cardiovascular health, although the findings are not without controversy. A video recently highlighted the positive effects of napping, prompting questions about its implications for heart disease, particularly among older adults.

Historically, the practice of napping has roots that span back to ancient civilizations. Texts from ancient China and practices in Hellenic Greece and Rome emphasize the restorative powers of daytime sleep. In contemporary discussions, researchers continue to explore how napping can affect health outcomes, particularly concerning heart disease.

Several studies have emerged over the last four decades, yielding mixed results. A notable example is a study conducted in Switzerland, which analyzed health data from 3,500 adults. It found that individuals who napped once or twice a week had a 48% lower risk of developing cardiovascular disease compared to those who did not nap. Similarly, researchers in Greece and at the Harvard School of Public Health examined data from 23,000 Greek adults and discovered that participants who took naps of at least 30 minutes three times a week were less likely to die from heart-related issues than those who skipped napping entirely.

Despite these promising findings, some studies raise concerns about the potential health risks associated with daytime napping. Research has linked excessive napping to increased markers of inflammation, impaired blood sugar control, and higher blood pressure, all of which can elevate cardiovascular risks. Additionally, prolonged nap habits may signal cognitive decline for some individuals.

The complexity of sleep patterns and cardiovascular conditions complicates the interpretation of these findings. Factors like age, genetics, health, and lifestyle choices further influence the relationship between napping and heart health. Importantly, most of the research conducted is observational, meaning it identifies correlations rather than establishing direct causation.

As Eve Glazier, M.D., and Elizabeth Ko, M.D. of UCLA Health explain, sleep consists of multiple stages, each with unique effects on the body. While short naps a few times a week seem to correlate with health benefits, longer naps—particularly among those with existing sleep difficulties—might signal potential cardiovascular risks.

In summary, while brief napping could be a beneficial practice for those looking to improve their heart health, individuals should be cautious about the duration and frequency of their naps. More comprehensive research is needed to draw definitive conclusions on the overall impact of napping on cardiovascular health.

Readers are encouraged to consult healthcare professionals when considering lifestyle changes that may affect their health. For further inquiries, contact the UCLA Health Sciences Media Relations department.