Up to two thirds of children don’t

Up to two thirds of children don’t get as much sleep as they should do, and this can make them nervous and slower at school，researchers say．
So how should young people sleep each night? The answer is between 8 and 10 hours．
If you don’t get enough sleep at night，you'll have less energy the next day．
But the researchers say many children have missed out on 4，500 hours of sleep by the time they are 7 years old．They say that children miss sleep because they have TVs and computers in their rooms and busy parents don’t read to their younger children at night any more. The traditional “bedtime story” helps children to relax and fall asleep peacefully . Children with TVs and computers in their bedrooms are more likely to sleep badly, and to get less than 8 hours sleep．Even losing one hour’s sleep a night can mean that children do less well at school.
German scientists think that your brain keeps working while you are asleep．To show that they were right ，they gave two groups of people a problem to work out．One group went to sleep and the other group stayed awake . The result? The people who slept worked out the answer more quickly，suggesting that their brains had been trying to find the answer while the people were asleep．So，make sure you get enough sleep tonight， and you’ll be at your best tomorrow．

結果 (中文) 1:

高达三分之二的儿童没有得到他们应该得到多少睡眠，研究人员说，这可以使他们紧张和较慢的学校，那么应该如何
。年轻人每晚的睡眠时间？答案是8小时和10小时之间
。如果你没有得到足够的睡眠，你就会有较少的下一天的能量。
但是研究员说许多孩子已经错过了4，在他们7岁时的500个小时的睡眠。他们说，孩子们想睡觉因为他们在房间里忙碌的父母电视和电脑不读他们的年轻的孩子在晚上再。传统的“睡前故事”帮助孩子放松和安然入睡。房间里有电视和电脑的孩子更有可能睡得不好，和得不到8小时的睡眠。即使失去一个小时的睡眠一个晚上就意味着孩子们在学校中成绩不好。
德国科学家认为大脑不断的工作，当你睡着的时候。表明他们是正确的，他们让两组人来解决的问题。一组去睡眠与另一组保持清醒。结果呢？睡的人制定的回答更迅速，这表明他们的大脑一直在试图找到答案，而人们都睡着了。所以，确保你得到充足的睡眠时间，明天你就会在你最好的。

結果 (中文) 2:

了三分之二的儿童不能睡觉他们应该做的和这可以使他们紧张和慢在 school，researchers 说
青年人应该怎么睡每晚？答案是之间 8 和 10 小时。
如果你没有足够的睡眠，你会有更少的能源未来吃力
但研究者说许多儿童已错过了 4500 个小时的睡眠的时候他们是 7 年 old．They 说儿童错过的睡眠，因为他们在他们的房间有电视和电脑，晚上再给年轻子女读不忙碌的父母。传统的"睡前故事"帮助儿童放松和和平地睡着。儿童电视和计算机在他们的卧室，更有可能睡不好，得少于 8 小时 sleep．Even 失去每晚一小时的睡眠可以指的是孩子做不太好在学校
德国科学家认为工作，则 asleep．To 显示他们是对市民给了两组人工作 out．One 组的问题你的大脑不停去睡觉，另一组一直醒着。结果呢？那些睡过的人算出了答案，他们的大脑一直试图找出答案，人民虽然 asleep．So，make 确保你得到足够的睡眠 tonight，，你就会在你最好明天更多 quickly，suggesting