2011年6月英语四级仔细阅读部分Section A外刊原文
Older people need less sleep a myth
The popular notion that older people need less sleep than younger adults is a myth, scientists said yesterday.
While elderly people tend to sleep for fewer hours than they did when they were younger, this has a negative effect on their brains performance and they would benefit from getting more, according to research.
Sean Drummond, a psychiatrist at the University of California, San Diego, said that older people are more likely to suffer from broken sleep, while younger people are better at sleeping efficiently straight through the night.
More sleep in old age, however, is associated with better health, and most older people would feel better and more alert if they slept for longer periods, he said.
The ability to sleep in one chunk overnight goes down as we age but the amount of sleep we need to function well does not change, Dr Drummond told the American Association for the Advancement of Science conference in San Diego.
Its definitely a myth that older people need less sleep. The more healthy an older adult is, the more they sleep like they did when they were younger. Our data suggests that older adults would benefit from continuing to get as much sleep as they did in their 30s. Thats different from person to person, but the amount of sleep we had at 35 is probably the same amount we need at 75.
【英语四级仔细阅读部分Section】相关文章:
最新
2016-10-18
2016-10-11
2016-10-11
2016-10-08
2016-09-30
2016-09-30