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lay off And waking up at different times increases the risk of heart attack and stroke, even for people taking the recommended dose. SleepAccording to a new study.
While most previous research has measured the effects of sleep timing on human health, little is known about changes in the sleep cycle, researchers said in a statement Tuesday.
To solve this problem, for seven days, scientists tracked the activity data of 72,269 participants aged 40 to 79 years and did not experience any serious cardiovascular problems.
They calculate each person's Sleep Routine Index (SRI) score, with higher scores indicating more regular sleep.
The team tracked the risk of cardiovascular death, heart attack, heart attack and stroke over eight years and found that people with irregular sleep patterns were 26% more likely to experience them than those with regular sleep cycles. Irregular sleep means the difference between the time a person sleeps and wakes up.
The 26 percent calculation also takes into account a number of factors, including age, physical activity, alcohol consumption and smoking, that may affect the findings. However, this was an observational study and, therefore, can only establish correlation rather than cause and effect: we cannot know for sure whether irregular sleep patterns caused the increased risk.
Researchers also found that 18- to 64-year-olds with higher SRI scores (who get more regular sleep) were more likely to get the recommendation for seven to nine hours of sleep per night, and seven to eight hours after reaching adulthood. 65, 61% of regular sleepers did so compared to 48% of irregular sleepers.
But even irregular sleepers who get the recommended amount of sleep are at increased risk of serious cardiovascular problems.
“Our results suggest that regularity of sleep may be more important than adequate sleep,” the study said.
Lead researcher Jean-Pierre Chaput, a professor of pediatrics at the University of Ottawa in Canada, told : “A growing body of research suggests that sleep disturbances may be a greater predictor of mortality than sleep deprivation.”
To reduce the risk of cardiovascular events, Chaput highlighted that high blood pressure is the main risk factor.
“Since poor sleep contributes to high blood pressure, readers should make it a priority to get seven to nine hours of uninterrupted, restful sleep each night,” he said.
“Bedtime and wake-up times don't have to be the same every day, but it's best if they stay within 30-60 minutes of your regular schedule,” Chaput added.
“Small differences are good, but consistent sleep patterns improve sleep quality, improve mood and cognitive function, and reduce health problems such as heart disease and diabetes,” he said.
Chaput also cautioned against relying on weekend sleep-ins.
By sleeping longer on the weekends, some sleep can be recovered, but it doesn't completely eliminate the negative effects of chronic sleep deprivation during the work week, he said.
“While extra weekend sleep can temporarily improve mood and cognitive function, irregular sleep patterns can disrupt your body's circadian rhythm and lead to long-term health problems like obesity, diabetes and heart disease,” Chaput added. In collaboration with the World Health Organization.
“I believe this is an important next step in ensuring that sleep is not considered a waste of time in our society, but an important part of well-being,” he said.
Navid Sattar, professor of cardiometabolic medicine at the University of Glasgow in Scotland, who was not involved in the research, used the language of “excessive causation” despite the links between sleep cycles and cardiovascular health.
Other factors in people's lives that cause them to have different sleep patterns, such as drinking alcohol at night, may not be the sleep cycle itself, but the cause of poor health, he told Thursday.
“It's very difficult to say,” Atatar said, adding that “he's careful to attribute the cause here.”
The study was published in the Journal of Epidemiology and Community Health.