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Why do humans sleep? Most people sleep for one-third of their lives
One reason for sleeping may be to rest the brain and body
Some modern scientists speculate that during sleep, unused synapses will be pruned to strengthen the remaining synapses, just as pruning dead branches can enhance the health of rose bushes
Research in recent years has shown that the length of sleep is becoming an important behavioral risk factor for death
Research in recent years has shown that the length of sleep is becoming an important behavioral risk factor for death
In East Asia the population, body mass index (BMI) and sleep duration and heart vascular potential confounders disease (CVD) and cancer mortality, and therefore should be regarded as an association between sleep duration and outcome of death or adjustment factors
At present, no studies have conducted stratified analysis based on the BMI of the main healthy population
JAMA
This cohort study of personal level data from 9 cohorts of the Asian Cohort Alliance was conducted from January 1, 1984 to December 31, 2002
Results A total of 322,721 participants (mean [SD] age, 54.
Among men and women, 7 hours of sleep is the lowest point associated with death from all causes, cardiovascular diseases and other causes, while 8 hours is the pattern sleep time for men and the second most common sleep time for women
The relationship between sleep time and death risk in East Asian men
The association between sleep time and all-cause mortality in men and women is J-type
Male (HR=1.
The relationship between sleep time and death risk of East Asian women
In summary, sleep time is a behavioral risk factor for death in men and women
In summary, sleep time is a behavioral risk factor for death in men and women
references:
Association of Sleep Duration With All- and Major-Cause Mortality Among Adults in Japan, China, Singapore, and Korea.
Association of Sleep Duration With All- and Major-Cause Mortality Among Adults in Japan, China, Singapore, and Korea.
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