A recent study reveals that individuals with irregular sleep patterns face a heightened risk of heart attacks and strokes, even if they manage to get the recommended amount of sleep. The research highlights the importance of consistent sleep routines for cardiovascular health.
The study, conducted by researchers in Canada, analyzed sleep data from over 72,000 participants aged 40 to 79. These individuals, who had no prior history of major cardiovascular issues, wore activity trackers for a week to monitor their sleep schedules.
Using this data, scientists calculated a Sleep Regularity Index (SRI) score for each participant, with lower scores indicating more irregular sleep patterns.
Findings showed that people with inconsistent sleep schedules were 26% more likely to experience a serious cardiovascular event, such as a heart attack or stroke. This risk remained significant regardless of whether individuals achieved the recommended seven to nine hours of nightly sleep, said Newsmax.
Jean-Philippe Chaput, the study's lead researcher, emphasized, "Our results suggest that sleep regularity may be a stronger determinant of cardiovascular risk than sleep duration."
Consistency in Sleep Linked to Better Heart Health
According to CNN, the study also found that consistent sleepers were more likely to meet the recommended daily sleep requirements. About 61% of regular sleepers achieved the ideal sleep duration compared to 48% of irregular sleepers.
However, even irregular sleepers who slept the recommended hours faced an increased risk of cardiovascular issues.
Experts suggest that irregular sleep patterns may disrupt the body's ability to regulate blood pressure, blood sugar, and immune function, leading to adverse effects on heart health.
Chaput advised maintaining consistent bedtimes and wake-up times, ideally within a 30-60 minute range daily.
"Small variations are fine, but sticking to a routine supports your body's natural rhythm and reduces health risks," he added.
While the study establishes a strong link between sleep irregularity and cardiovascular health, researchers note that other lifestyle factors could also contribute to these risks.
