睡眠不足的危害

If you are like a lot of teens,you like to sleep.And that's a good thing!But many people sleep poorly.And this harmful effects on the body and mind.While you sleep,your body produces cells that work fight infections.If you，don't sleep enough,fewer cells are producted,and your immune systems doesn't work well.As a result, you can become sick more easily,especially when you don't get enough sleep.

Not enough sleep also influences your mind.You are more likely to feel angry or upset, so you act negatuvely to almost everything .Not enough sleep makes it difficult to pay attention carefully to what's happening in school.Making good decisions ,solving problem, and remembering always seem much harder when you don't get a good night's sleep. Not enough sleep also makes you act to things more slowly. In fact, tired drivers may be responsible for around ten percent of our traffic accidents .Sleeping at least seven hours a night is important for your health, your grades, and even your safety!

如果你像大多数青少年一样喜欢睡眠。这是一件好事！但是许多人睡眠很差，这对人的身体和大脑都有危害。当你睡眠的时候，你的身体产生一些抵抗传染病的细胞，如果你睡眠不足，这种细胞产生的数量就少，你的免疫系统就不能很好地工作，结果就是很容易生病，尤其当你没有得到充足的睡眠的时候。

没有充足的睡眠，你的大脑也有影响。你更有可能感到生气沮丧，因此你对所有的事都感到消极。没有得到充足的睡眠，也影响你的注意力，让你很难注意到学校里发生的事。当你晚上没有睡好的时候，做出好的选择，解决问题，记忆力看起来更难。没有充足的睡眠，使你的行为变得更慢。事实上，疲劳驾驶可能导致交通事故的几率上升大约20%。一晚上至少睡七个小时，对你的健康，你的成绩，甚至你的安全都很重要。