*cue cheesy infomercial music*
Hey, YOU! Tired of using common sense and personal experience to confirm really obvious assertions? Then you should try science. Yes, through use of our patented scientific method, science will have your theories looking less questionable and more sound in no time.
Just look at this study from Syracuse University Psychology Professor Joshua Smyth. At first all four groups of gamers look exactly the same. But just apply the magic of science and you'll see that the group playing MMO Dark Age of Camelot spent on average twice as long with the game on a weekly basis, resulting in "significantly lower overall health and poorer sleep." Once again, science improves our lives by confirming something that every gamer already knows.
Remember, that's science: Confirming observations since ancient Egypt.