The harm of students using mobile phones is three sentences and a half.

First, playing mobile phones affects health.

This is an obvious point. Some people say that playing with mobile phones hurts the eyes, but it is far more than just hurting the eyes. It is also very harmful to lumbar vertebrae and cervical vertebrae. Playing mobile phones for a long time will affect eye fatigue, and the lumbar and cervical vertebrae will be compressed and deformed in the same posture, which is difficult to correct once deformed.

Second, playing mobile phones is prone to psychological changes.

Playing mobile phones for a long time must be chatting or playing online games. No matter what you play, you will become dependent after a long time. Once this dependence occurs, it will be addictive, will often meditate in your heart, and will want to play for a while from time to time. Over time, you will delay what you should do. Slowly, you will treat business as crooked ways and games as business. This kind of mentality distortion is what people call "playing with things and getting tired." Over time, it will make people degenerate, depressed and even devastated. Seriously, even hallucinations will occur in the game, and it will be difficult to control yourself. Playing with mobile phones can really harm children.

Third, playing mobile phones will lead to unintentional learning, and the grades will plummet, and then they will move towards the ranks of poor students.

Students who play mobile phones will learn to play with things, and their grades will plummet because they have no time to study. Over time, as more classes fall behind, he can't attend classes because he can't understand too much. If a student doesn't attend class and do his homework, his grades must be very poor, so most children who play games can't get good grades in the exam.

Fourth, playing mobile phones leads to the formation of bad habits, which makes you more and more off track.

Once the game is addicted, children will get worse and worse, and their minds will become more and more closed. Especially those immature students, there is no way to control themselves at all, and they can only be trapped deeper and deeper by the game. What kind of life do you live all day? Regardless of study, I only have pictures of games in my mind. You see how many college students have to drop out of school because of playing games, and how many middle school students have abandoned their studies because of playing games all day. Because those who design and develop games immerse gamers in it, find a virtual sense of existence and gain, and make them forget the reality. Therefore, in reality, students who play games are destroyed, and parents and friends are very helpless and extremely sad. Some children ruin their life's happiness because they are addicted to games. Some of them are very good students. After being contaminated with the game, he became another person. They even stay at home and play games. There are so many people on the Internet accusing Ma of developing so many harmful games and destroying so many children and families. You can develop games, but you have to set a threshold for playing games. Otherwise, no matter whether the child is addicted or not, he will not control the time of playing games. This is immoral and should be condemned.