Take a nap good ?
作者：Shirleyhuang 提交日期：2007-10-25 9:54:00 | 分类: | 访问量：1430
Medical experts say most Americans do not get enough sleep. They say more Americans need to rest for a short period in the middle of the day. They are advising people to sleep lightly before continuing with other activities.
One study earlier this year found that persons who sleep for a few minutes during the day were less likely to die of heart disease. The study followed more than twenty-three thousand Greek adults for about six years. Adults who rested for half an hour at least three times a week had a thirty-seven percent lower risk of dying from heart disease than those who did not nap.
Study organizers said the strongest evidence was in working men. The organizers said naps might improve health by reducing tension caused by work.
Some European and Latin American businesses have supported the idea of napping for many years. They urge people to leave work, go home and have a nap before returning. In the United States, some companies let workers rest briefly in their offices. They believe this reduces mistakes and accidents, and also increases the amount of work a person can do.
Sleep experts say it is likely that people make more mistakes at work than at other times. They say people should not carry out important duties when they feel sleepy. And they say the best thing to do is to take a nap. About twenty minutes of rest is all you need. Experts say this provides extra energy and can increase your effectiveness until the end of the day.
But experts warn that a nap should last no more than twenty to thirty minutes. A longer nap will put the body into deep sleep. Waking up will be difficult.