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Sleep and longevity: getting enough sleep is not enough
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The quality of sleep is of crucial importance.
Recent analyzes by Harvard researchers provide us with the five decisive sleep criteria for a better life expectancy.
It is often said that it is never too late to form good habits. But it’s never too early either, especially when it comes to sleep theme. In any case, these are the conclusions of recent research that will be presented next month during the annual scientific session of l’American College of Cardiology. Conducted on 172,321 American adults between 2013 and 2018, the statistical study shows that people with quality sleep are less likely to die prematurely. So, the life expectancy of good (long-term) sleepers was higher than that of poor sleepers 4.7 years for men and 2.4 years for women. In the statistical associations, the researchers identified five criteria that seem decisive:
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Seven to eight hours of sleep per night.
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Difficulty falling asleep no more than twice a week.
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Difficulty staying asleep no more than twice a week (waking up at night, waking up at dawn, etc.).
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Waking up feeling well rested at least five days a week.
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Do not use sleeping pills (NB: this study, observational, does not make it possible to say whether taking sleeping pills is in itself a cause of reduced longevity or just the consequence of the real risk factor which would be poor sleep).
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If this study recalls that the lack of sleep has a negative impact on health and life expectancy, it also shows that the quality of sleep is of crucial importance : « CThe results underline that it is not enough to sleep enough hours »summarizes Dr. Qian, a medical researcher at Harvard Medical School and co-author of the study, “ you really need to have a restful sleep and not have too much trouble falling asleep and staying asleep ». Specifically, the research team found that, compared to those who had none or only one favorable sleep criterion, people who met all five criteria were 30% less likely to die for any reason. that is, 21% less likely to die from a heart disease19% less likely to die from cancer and 40% less likely to die from causes other than heart disease or cancer. Finally, the data collected suggests that approximately 8% of deaths from all causes can be attributed to bad habits sleep. Something to make good resolutions to encourage our sleep, but also to focus on cure the disorders in a natural way.
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