睡觉问题（Sleeping problem）.docVIP

睡觉问题（Sleeping problem） One, 8 hours sleep is not the way to health 8 hours sleep is widely accepted as a health issue, but a Japanese 100 thousand - year - long, 10 - year follow - up study shows that people who sleep 7 hours a day live the longest. Japan Nagoya University Professor Yu Xiao Zi et al in the waist of the latest issue of the American Sleep Association said the author, both men and women, sleep 7 hours a day in the most appropriate, get more sleep the high mortality, sleep less mortality is also higher. In the past 10 years, 7 hours of sleep every day people the lowest mortality; daily sleep time is less than 4 hours than those who slept 7 hours, the male mortality rate is as high as 62%, female 60%; every day more than 10 hours of sleep than those who slept 7 hours a person, male mortality rate is as high as 73%, female 92%; in addition, 8 hours of sleep the male mortality is higher than man 11% 7 hours of sleep, women 23%. In addition, sleeping time varies from age to season, not necessarily limited to 7 hours of sleep, and most importantly, to yourself. Expert analysis: human normal sleep time is 5 to 10 hours, adults sleep 7.5 hours per night on average. About 1 to 2 of every one hundred people sleep only 5 hours a night, while the other few sleep for 10 hours. Most of us dont sleep well for most of the time. The study found that volunteers who were allowed to sleep for as long as possible had to spend one or more hours to fall asleep. There is no unified version of the length of sleep. Vary from person to person, can be divided into long sleep type (about 8 hours) and short sleep type (about 6 hours), in fact, 4-10 hours are within the normal range, mainly in second days after awakening, the spirit of the degree prevail. Two what types of sleep can be divided into? Different people have different sleeping habits. According to sleeping time and waking time, sleep can be divided into four kinds: 1) go to bed early, get up early, go to bed at 10 in th