According to data from 21 countries, in the seven regions, the research team increased the risk of major cardiovascular events, such as stroke or heart failure, compared with the upper limit of over 8 hours, as well as 41%.
Perhaps because of the basic conditions of people, they sleep for a long time, explain to the authors of the study that this can increase the risk of cardiovascular disease or death.
Shuanshi Wang, Ph.D. McMaster and Peking Union Medical College student In China, the risk of growing cereal crops has been identified.
"Daytime breathing was associated with high risk of cardiovascular events and mortality [more than] six hours of sleep, but not at sleep [less than] 6 hours at night, "Van said.
Of course, "night sleep seems to be a failure," Wang explained.
The previous studies were mainly conducted in North America, Europe and Japan. A new study brings global image.
But the conclusions are an observer, so the reason for this community remains unknown.
"Although the results are very interesting, they can not prove the cause and effect," said heartily nurse Julie Ward of the British Heart Foundation.
Less than six hours sleep – this increased the risk by 9% compared to sleeping people for six to eight hours, but this result was considered statistically significant.
The survey found that 116,632 adults from 35 countries and 70 adults in 21 countries were asked to sleep habits. The participants were monitored on an average of 7.8 years.
For every 1,000 people aged six to eight hours offered by the team at night, cardiovascular disease has developed or died annually. This night rose to 9.4 in six or less sleepers.
Professor of the Department of Cardiovascular Medicine and Epidemiology of Warwick University Francesco Cappucchio did not take part in this study, conducted several studies of sleep and influenced our health. According to him, the lack of sleep is associated with "increased risk of death."
"If you do not sleep for a long time, you are not inclined to chronic illness," said Cappuchchio, showing short duration of sleep for increased blood pressure, obesity and diabetes.
However, the findings for unspecified individuals were not statistically significant and, instead of the greatest risk, were observed among controllers.
For sleeping people for eight to nine hours 8.4 per 1000 people cardiovascular disease or death every year. Sleep increased from nine to ten hours (1000 to 10.4), and sleeping more than 10 hours (1000 to 14.8).
This risk is 5%, 17% and 41%, respectively, compared to the recommended amount of watch.
But Wang noted that too much sleep may be a marker for other cardiovascular and other causes of death.
Cappuccino concurred that "it does not endanger a long-lasting death or health," but this ill health makes you more sleepy.
Capuchchio said that unhealthy people could suffer from a long-term sleep disorder. If one has the main malignant tumor, for example, they are much tired and weakened and longer sleep.
The main focus of the study is that the optimal duration of sleep is 6-8 hours per adult, says Wang.
Vard said that people should avoid caffeine, as well as alcohol and nicotine, in the afternoon or at night, "it is important to show that there are very simple things to help them sleep well at night." breaks the sleep patterns. Exercise and balanced diet can help, he said.
Neptemp may indicate a major illness
It is common to find occult intestines frequently In the Middle East, China, South-East Asia, and South America, and at night or more during the night, due to high risk of death or cardiovascular disease.
However, it does not apply to sleeping people during the six hours of the night.
"In these people, breathing in the daytime reduces the risk of sleep shortage," Wang said.
But for those who are sleepy enough at night, "daytime scarring has been linked to high risk of cardiovascular events and mortality," he said.
Cappuchchio previously conducted delicate research on British daily adults.
"Nephase morbidity (fatigue, fatigue) eventually leading to illness and death may be proportionate to the lack of sleep, may be a compensatory catching or symptom of a rash mistake, "he said.
Sleep pattern monitoring
There were several limitations in the study, according to Wang, that participants are self-reported sleep patterns and the duration of sleep is based on the space between waking and sleeping.
The team also did not collect data on sleep disturbances, such as insomnia, sleep, and health, the newspaper writes.
Wang has explained that large population studies can not accurately measure the sleep time.
Researchers hope that their outcome will help physicians inquire about sleep patterns that identify patients with any potential disease-related illness when discussing lifestyle factors.
Salim Yusuf, McMaster University Medical Professor and PURE researcher, his key researchers, were selected: "Heart and artery disease or high risk of death that can help diagnose, including questions about sleep and daily breathing in your clinical history, for doctors."