Is it easy to have a heart attack if you go to bed late? An analysis of 80,000 people found that going to bed before 10 a.m. reduced cardiovascular risk by 24%
Is it healthier to go to bed early and get up early? Study says cardiovascular risk is reduced by 24%
Whether your daily routine is normal is often a decisive factor in your health. Research published in the European Society of Cardiology (ESC) shows that earlier bedtime is significantly associated with a lower risk of heart disease.
The study used data from 88,026 subjects in the UK Biobank. The average age was about 61 years old and the age range was 43-79 years old. 58% of them were women. The test method is to use wristband sensors to collect the start and end times of the subjects’ sleep within 7 days, and lead the subjects to complete a health and physical condition assessment survey.
In addition, the research team also re-diagnosed the subjects, including heart disease, heart failure, heart disease related to iron deficiency, stroke and temporary cerebral ischemia. During an average interview period of 5.7 years, 3,172 subjects (3.6% of the population) were found to have the above cardiovascular diseases.
Research results show that subjects who sleep “after midnight” have the highest risk of cardiovascular-related diseases. On the contrary, subjects who slept between 10 p.m. and 11 p.m. had a significantly lower incidence of cardiovascular disease. Compared with subjects who went to bed between 10 and 11 pm, those who went to bed late had a 12% increased risk of cardiovascular disease; compared with those who fell asleep before 10 pm, the risk increased by 24%.
Going to bed after 12 o’clock may disrupt the biological clock and increase cardiovascular risks
When gender was used as the basis for analysis, the study showed that women were more likely to have increased cardiovascular risk. David Plans, the lead author of the study and senior lecturer in systems neuroscience at Exeter University in the UK, said that it may be related to the human body’s endocrine system. Sex differences in endocrine responses to circadian rhythm disruption may also be related to the age of the subjects, who were mostly postmenopausal women. A review of the literature revealed that postmenopausal women have a significantly increased risk of cardiovascular disease.
Plans pointed out that from the research results, going to bed regularly and at a fixed time may be the least burdensome practice for cardiovascular health. Especially falling asleep after 12 midnight can easily disrupt the body’s biological clock and force the body to re-adapt to a different work and rest pattern, which is an adverse factor affecting cardiovascular health.
Many studies have pointed out that the human body’s circadian rhythm helps regulate the state of mind, body and soul, and is closely related to detoxification, blood circulation and metabolism. Although it is impossible to know from research why cardiovascular disease is related to sleep duration, the results of various observational studies show that irregular life schedules will have a negative impact on cardiovascular health, especially those who are accustomed to going to bed late and working shifts. The potential harm to perpetrators deserves more attention from individuals and governments.
David Plans pointed out that although there is no evidence to explain the causal relationship between cardiovascular disease and sleep time, short sleep time may be a potential cardiovascular risk factor. For women alone, the impact of hormones on circadian rhythms and the changes in body hormones after menopause may increase the risk of fatal cardiovascular disease. Remind people that maintaining a regular schedule and getting up at a fixed time is very important for all ages, especially middle-aged and elderly people.
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