With the rapid development of the science and technology, Computers have entered almost everyone's house. -> OR '..., the computer has become part of every household.'

However, it also has an adverse effect on teenagers because they spend tons of time of the teenagers have been spend on playing computer games.

First of all, it will do harm to a person's health if he spends so too much time playing computer games.

The computer radiation will do harm to people's skin. -> OR 'Computer radiation harms human skin.'

And even the most luxurious skin cream (OR skin care product) can not prevent it.

Besides, if one person spends so too much time in front of the computer, he could be so tired that he will not do any sports at all.

No exercises and long-time sitting for a long time will make people fatter and fatter.

Secondly, computer games can turn a honor student into a poor student one.

He wouldn't go to school for the sake of having more time to playing.

He will pay no attention on to his studies, so that he would will not get a high mark.

Last but not least, we should admit that some computer games are too violent and sexually appealing suggestive for teenagers. -> sexually appealing sounds too positive

These adult-only images may cause the sadistic impulses which is are definitely not suitable for the teenagers.

Therefore, for the above problems caused by playing computer games, I should say that we must not only limit the time which is spent on playing computer games but also formulated a support censorship to avoid prevent the moral degeneration of the teenagers.