Game online is a quite popular word to not only the students but also the parents. It is the game that is so attractive and interesting . Probably because of this reason, a lot of young people are easily addicted to this. But you know, the game is a double-edged sword. Besides the aim at entertainment, it contains many unpredictable disadvantages that no one expects. According to a CNYPA report, almost children have learned to play games online since they are in kindergarten. This is especially harmful for young children because games online makes a bad effects on their health. Regularly sitting in front of the computer screen and phone makes them easy to get some serious diseases such as high blood pressure, promote the ageing process, increase myopia, reduce the immune system. If they are sitting in the wrong posture, it also causes some symptoms such as back pain, curvature of the spine, disc herniation. Over time, they will turn into more serious disease when they grow up, even lead to death. To students, learning is always a top priority, but it seems to some students that the game takes too much their time. As the result, they tend to neglect study, make their parents extremely nervous and anxious. In addition, games also shorten the time they connect with friends, care about the people around, gradually they will lose communication skills, then isolate themselves from everyone. In conclusion, we can see that game online brings a lot of great harm. Playing games is not wrong, but each of us should have the suitable time for it and do not let it affect too much to our life.