Which is the best time to sleep and stay healthy according to science?

We know that sleep quality helps to stay healthy. But various studies do not always provide accurate results with respect to bedtime. Current research is often done with questionnaires that patients must complete, and therefore on measures that are too subjective to be of any real scientific value.

A recent study published on the Oxford Academic website conducted by the European Society of Cardiology tested 103,712 participants. Each patient was equipped with a device called an accelerometer, a system based on the same principle as a connected clock. And the results finally announce an ideal bedtime to limit heart disease risk!

basics of study

david plansThe study’s lead author and researchers at the University of Exeter, UK, explain that the human body has a 24-hour internal clock, also known as the circadian rhythm. It helps in controlling our physical and mental functioning.

Even if the results do not make it possible to establish a causal link between bedtime and cardiovascular risks, they allow us to suggest that timing of bedtime too early or too late may affect circadian rhythms. interrupts. And so, there can be adverse health consequences, especially on our cardiovascular system. Researchers estimate that the bedtime should be between 10 pm and 11 pm. to respect our internal clock, and also note thatA much larger difference would be of greater consequence for women than for men.

How was this study done?

Participants were recruited between 2006 and 2010 through the UK Biobank database. The purpose of this database is to analyze the contribution of genetics and the environment to behavioral and health issues. For this study, the mean age of the patients ranged from 43 to 79 years, with a mean age of 61 years. The panel consisted of 58% women and 42% men.

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The accelerometer on his wrist analyzed his sleep schedule for a week. Participants were also asked to specify certain elements of their lifestyle, such as the practice of physical activity and their health status in general. After this week of testing, the patients had nearly six years of accurate cardiac follow-up.

learning outcome

3172 participants, or 3.6% of the sample, developed heart disease during the 6 years; from them, The highest incidence occurred in patients who went to bed at or after midnight. The lowest incidence was observed in those who slept between 10 pm and 10:59 pm. To get these results, the researchers combined the hours of sleep flow with the cardiac events that occurred. Of course, external factors such as obesity, smoking or cholesterol were also taken into account in the analysis of the results.

The results claim that if we go to bed at or after midnight, the risk of heart disease increases by 25%., But it’s still 24% higher with a bedtime before 10 p.m.! We specify this again, especially among participants. On the other end, People who go to bed between 10 p.m. and 11 p.m. reduce their risk of heart disease by 12%.

Researchers believe they haven’t revealed the whole truth about a certain hour of sleep; They also specify that even while respecting this bedtime schedule, it doesn’t reduce the risk to zero, but having a regular bedtime and having it between 10 pm and 11 pm does not reduce the risk of heart disease. May help reduce the risk of developing And it doesn’t cost much to try to fix your bedtime at this place.

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