班级：L3-A 姓名：Freya 学号：20193000215日期：2020/3./26 作业序号 002Topic:Many young peo...

Spending long time on the internet without parental supervision or control is a very not conducive to the physical and mental health development of young people. One major issue is not good for their eye. If they stare at the screen all the time, and the light from the screen can irritate the human eye. Over time it can cause serious damage to eyesight. Another issue is without parental regulatory, the negative network information content will produce the burden to the adolescent psychology. If teenagers browse to pornography, violence and other content, without the correct guidance of adults will cause psychological distortion. This is very bad for the growth of teenagers. Finally, everything has a degree. The right time and the right way to use the network is conducive to teenager growing up.