Why is bedtime so important?

For most adults today, achieving a goal of sleeping 7 hours a night is a problem. However, Duke University scientists add one more thing to the list of things to do to ensure health: go to bed at a certain time.

Most of us think that bedtime is only for children; and once I entered the university, I could not sleep at any time.

However, new research published today in Scientific Reports shows that people who do not have certain hours of sleep are usually heavier, less healthy, with higher blood sugar and higher blood pressure.

New research on sleep patterns suggests that going to bed and waking up at a certain time is also important for heart health and metabolism in older people.

People who do not have certain hours of sleep are usually heavier, less healthy .

The researchers said it is unclear whether these symptoms are responsible for the abnormal sleep or erratic sleep that causes these symptoms.

"Perhaps all these things have a reciprocal effect, " TS. Jessica Lunsford-Avery, a professor of psychiatry and behavioral science and the lead author of the study, said.

Either way, after a 1,978 review, researchers concluded that keeping 7 hours of sleep at the same time every night would not harm the opportunity to stay healthy.

"Heart disease and diabetes are very common in the United States, extremely expensive and also the leading cause of death in this country ," she said. 'If you can predict who is at risk for these diseases, you can prevent or delay the onset of the disease'.

Research by TS. Lunsford-Avery has given each participant, ages 54 to 93, a device that keeps track of the sleep schedule, specific to the minute, so the team can track the smallest changes. (For example, someone sleeps at 10: 10 pm while the usual schedule is going to sleep at 10 pm).

They found that people with hypertension tend to sleep more, and those who are obese tend to stay up late.

But the most important regular sleep timer is a good parameter to predict a person's risk of heart disease and metabolism.

People with irregular bedtime are also more likely to report depression and stress than those who have regular bedtime, both of which are associated with cardiovascular health.

African Americans have the most erratic sleep patterns compared to white, Chinese-American or Hispanic participants, the data show.

Poor sleep impedes the body's metabolism, leading to weight gain.

These findings suggest an association - not causality - between the regularity of sleep with heart health and metabolism.

'The study does not conclude that abnormal sleep hours lead to a health risk or health condition affecting bedtime.' Lunsford-Avery said.

However, data suggest monitoring sleep habits can help identify those at risk and health differences that may affect specific target groups.

The group plans to conduct further research in the hope of determining whether biology causes changes in bedtime and vice versa.

'Maybe obesity disrupts the normalization of sleep, or poor sleep interferes with the body's metabolism, leading to weight gain, and it's a vicious circle. With more research, we hope to understand what's happening biologically, and maybe we can say what's in front: chicken or egg. '