What is bad about playing games on the computer

Well, for you people who are in school, or college or have a job, these games can cause problems to your brain and you can't focus on important stuff. But if you don't go to school, or college or if you don't have a job, staring on a computer for many hours can cause problems to your eyes. So, it is not really the game, except if you do school or those other reasons I said.