So, I was playing GTA2 and I have noticed one thing - a lot of violent video games make it harder to concentrate on school, work, etc.
Does anyone experience anything like this? Does anyone know any way to stop it from happening?

I experience it with fighting games.

The only way I know to stop it is by just not playing the game. >>;

Yeah, fighting games are the worst. I wonder if there are any games that improve concentration...

Games that improve your concentration at school? I don't think even "educational" games could do that...