Overloading the joints hand: nerves of the affected fingers repeatedly when one keystroke, resulting in numbness, weakness. This can harm the joints and tendons of the hand, and if you keep your hands can lead to chronic pain.
The dependence on computers: maybe this is the hottest issue for the world modern, especially with the youth of our time. That is when the computer is not only a source of information, the tools to serve human needs, that it starts to replace the world around them. Gradually more and more people spend more time on the computer, constantly focused on the game or the network interface, forget the real life as well as the real communication. In particular, to children, psychologically stable enough, some of the games on the internet information could alter the world as well as the concept of ethical standards of the children. In some severe cases can lead to psychological disorders
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