According to the authors of a new study, falling asleep between 10:00 p.m. and 11:00 p.m. is the optimal bedtime. They combine them with a lower risk of heart disease than going to bed earlier or later. It is about the so -calledcircadian rhythm that helpsto regulate the physical and mental function. Although the scientists cannot close causality, the results indicate that early or late bedtime, the internal clock with adverse consequences for cardiovascular health can rather disturb.
How the optimal bedtime affects the heart function
The research team examined the connection between objectively measured and not self -reported falling asleep with a large sample of adults. The average age of the study participants was 61 years, with 58 % of them being women. The study authors have collected data at the start of sleep and wake up for over seven days with a accelerometer carried on the wrist. Then they examined the subjects for cardiovascular diseases, which they defined them as a heart attack, heart failure, chronic ischemic heart disease, stroke and temporary ischemic heart attack. The incidence was the highest for people with bedtime after midnight. Those with the start of sleep between 10:00 p.m. and 10:59 p.m. showed significantly fewer risks. In addition, there was a 25 % higher risk of cardiovascular diseases for the former. For those who went to bed before 10:00 p.m., the risk was increased by 24 %.
In a further analysis of gender, the connection with an increased cardiovascular risk was stronger in women. However, the beginning of sleep only remained significant in men before 10:00 p.m. The study results indicate that the optimal time to fall asleep is at a certain point in the 24-hour cycle of the body. Accordingly, deviations in health can damage. The most risky time was after midnight. This may have been due to the fact that the likelihood of seeing morning light puts the internal clock back. However, the older age of the study participants could also be a disruptive factor, since the cardiovascular risk of women increases after menopause. There may be no difference in the strength of the connection between women and men. When the resultsthis studyIn other research work, the optimal bedtime and basic sleep hygiene could be an inexpensive preventive measure to reduce the risk of heart disease.
