the following appeared in a health magazine.
it has long been believed that getting at least eight hours of sleep a night is good for health. but a recent six-year study of adult sleeping habits found that people who reported sleeping eight or more hours a night had a higher rate of certain health problems than did those who reported sleeping seven hours a night. people who reported sleeping five hours a night also had an increased rate of the health problems, but this increase was slight compared to that for people who reported sleeping eight or more hours a night. clearly, people should try to get seven hours of sleep, and they should worry more about getting too much sleep than too little.
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