A large-scale study is adding to the growing body of research linking lifestyle to heart health, with new findings suggesting a correlation between sleep habits and cardiovascular risk.Published this week in the European Heart Journal, the University of Exeter-led research analyzed data from over 323,000 individuals to examine the impact of being a “night owl” or “morning lark.” The study revealed a significantly higher risk of heart disease for those who prefer later bedtimes,particularly among women,raising questions about personalized preventative care.
Night Owls Face Higher Risk of Cardiovascular Disease, Especially Women
Individuals who identify as “night owls” may have an increased risk of developing cardiovascular disease, with women appearing particularly vulnerable, according to recent research.
The study, conducted by researchers at the University of Exeter, found a correlation between preferring to stay up late and an elevated likelihood of heart problems. This connection is especially pronounced in women, suggesting potential sex-specific biological mechanisms at play. Understanding these risks is crucial as cardiovascular disease remains a leading cause of death globally.
Researchers analyzed data from over 323,000 participants, examining their self-reported sleep preferences – whether they considered themselves “morning larks” or “night owls” – and tracking their cardiovascular health over a period of several years. The findings revealed that night owls had a 6% higher risk of developing cardiovascular disease compared to morning larks.
However, when the data was broken down by gender, a more significant disparity emerged. Women who identified as night owls faced a 11% increased risk of cardiovascular disease, while the risk for men was only 1%. This suggests that the impact of chronotype – an individual’s natural inclination to sleep and wake at certain times – on heart health may differ between sexes.
“This research highlights the importance of considering individual chronotype when assessing cardiovascular risk,” researchers said. “The stronger association observed in women warrants further investigation to understand the underlying biological factors.”
The study did not establish a causal link between being a night owl and developing cardiovascular disease, but it does suggest a potential association. Factors such as lifestyle, genetics, and hormonal differences could contribute to the observed disparities. The findings underscore the need for personalized approaches to cardiovascular health, taking into account individual sleep patterns and biological factors.
