However, one thing that I want to say is to use computers also have harmful effects. When using the computer for a long time will cause these diseases to humans such as sleep disorders, decreased vision, fatigue, stress, muscle pain and disorders of human physiology. regular use of the social network will make people live closed over, a life that people known as the virtual life, people will shy, shy in crowds, they will not have you in real life. and on the network, there are a lot of violent games, black web, not suitable for children
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