The Golden mean: how many hours you can sleep without risk to health

Золотая середина: сколько часов можно спать без риска для здоровья

Lack and excess of sleep increase the likelihood of cardiovascular problems and premature death.

An international group of researchers from Canada and China examined the sleep habits of over 116 000 people aged 35 to 70 years participating in the scientific work “Promising urban epidemiology in rural areas”, informs European Heart Journal.

Золотая середина: сколько часов можно спать без риска для здоровья

In their analysis, the researchers also included information on the socio-economic situation of the parties, lifestyle, physical activity, nutrition, use of various medicines and family history of chronic diseases.

In total over the eight-year follow-up period of the study died 4381 people, and 4365 suffered a heart attack or stroke.

Analysis carried out by medical professionals have shown that people who regularly sleep more than the recommended 6-8 hours a night have a higher chance to die prematurely or to make cardiovascular disease.

In particular, the risk of premature death or cardiovascular disease was 5% higher in people who sleep 8-9 hours.

Золотая середина: сколько часов можно спать без риска для здоровья

For comparison, those who slept 9-10 hours, the probability of death or development of heart diseases and blood vessels was 17% higher. Similarly, the probability of premature death or development of cardiovascular disease in people regularly sleeping more than 10 hours, was 41% higher.

In addition, the study showed that the risk of obtaining the above mentioned results 9% higher among those who slept less than 6 hours. However, the authors warn that this increase was not statistically significant.

“Our study shows that the optimal duration of sleep for adults is six to eight hours a day,” says the study’s author Chuangshi Wang (Wang Chuangshi).

It should be noted that sleep deprivation also increases the risk of various chronic diseases: diabetes, obesity and depression.

Золотая середина: сколько часов можно спать без риска для здоровья

Recall, how many hours a day should children sleep.

As reported by the portal “Znayu” kids who spend most of the day on the abdomen, sleeping tight.

Also “Znayu” I wrote, early awakening heals and make people happier.

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