- Reduces eyesight.
- Easy diseases such as back pain, neurasthenia due to stress concentration, causing obesity .....
- It takes much time to play and entertainment on the network rather than having to work and study. Especially for children, always can not control myself from the temptation of online games, offline; chat and countless other things, the true things dangerous for the young soul of childhood.
- Time monotonous sat in front of computers will make the body tired, but very difficult to recover.
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