Playing computer games is a kind of addiction because;
1) people are glued to the computer screen and playing games all day long
2) they don't communicate with their real friends so they can become isolated
3) while playing they are immersed in virtual reality and if you try to ask them to do something, they could be extremely angry and in that moments they aren't under control.
вот направление) дальше сами. Там только вывод сделать