The study found that sleeping between 10 and 11 p.m. can reduce the risk of heart disease

The following is the The study found that sleeping between 10 and 11 p.m. can reduce the risk of heart disease recommended by recordtrend.com. And this article belongs to the classification: Life data.

According to new atlas, the role of regular and healthy sleep patterns in resisting diseases continues to become clearer through in-depth study of the impact of disrupted body clocks, that is, the 24-hour cycle known as our circadian rhythm. The newly published study on the relationship between bedtime and cardiovascular disease adds to this knowledge base, suggesting that sleeping between 10 and 11 p.m. may be beneficial to the heart.

In the past few years, some studies have deeply analyzed the relationship between circadian rhythm and cardiovascular health. A 2019 study revealed that sleeping less than six hours at night will increase a person’s risk of early death from heart disease, while a 2020 study showed that irregular bedtime every day may double the risk of heart disease. Just last month, another study provided clues about why shift workers are more prone to heart disease, detailing a new mechanism in heart cells that guides changes in heart activity within 24 hours.

This latest study pays particular attention to the best bedtime that may improve cardiovascular health. To this end, the authors analyzed the data of 88000 participants whose sleep and wake-up times were tracked by wrist mounted accelerometers within 7 days. The researchers assessed the demographics, lifestyle and physical health of the participants and conducted a questionnaire survey. Then the authors adjusted for factors such as smoking status, body mass index, blood pressure and cholesterol. Adjustments were also made for irregular sleep, changes in start and wake-up times, sleep duration, or subjects’ sleep time within 24 hours.

Then, the scientists followed up the subjects after an average of 5.7 years to determine the new diagnosis of cardiovascular disease. It was found that a total of 3172 people had cardiovascular disease, accounting for 3.6% of the total participants. Those who slept at midnight or later had the highest incidence rate, and they had a 25% higher risk of cardiovascular disease than those who slept between 10 and 10:59 PM. The risk of bedtime between 11 p.m. and 11:59 p.m. was 12%, while interestingly, people who dozed before 10 p.m. were 24%, although this was significant only among men. These associations remained after adjusting for sleep irregularities and duration.

“Our research shows that the best time to fall asleep is a specific point in the body’s 24-hour cycle, and deviation may be harmful to health,” plans said. “The most dangerous time is after midnight, probably because it may reduce the possibility of seeing the morning light, which will reset the biological clock.”

Scientists also report a stronger relationship between women’s increased risk of heart disease and sleep attacks, but the reasons behind it are unclear.

“It may be that there are gender differences in the way the endocrine system responds to circadian rhythm disorders,” plans said. “Alternatively, older study participants may be a confounding factor because of the increased cardiovascular risk in postmenopausal women – which means that there may be no difference in the strength of the connection between women and men.”

This ambiguity around gender roles illustrates many variables in these studies, which focus on relevance rather than causality. For example, does the lifestyle of night owls increase the risk or heart disease not reported in their questionnaire? What other factors may affect this risk since the initial 7-day monitoring period? Nevertheless, the results provide a lot of thinking for the author and add weight to the theory that healthy sleep habits are the key to a healthy heart.

“Although the results do not show causality, sleep time has become a potential heart risk factor – independent of other risk factors and sleep characteristics,” plans said. “If our findings are confirmed in other studies, sleep time and basic sleep hygiene may become low-cost public health goals to reduce the risk of heart disease.”

The study was published in the European Heart Journal.

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