Mountain Dew and Doritos would give me cancer in about 10 minutes flat, so I'll pass. However, the underwear thing is really cozy.
I think this image of an FPS addicted person isn't quite accurate. Anyone heard of Fata1ity (Jonathan Wendel)? He's one of the world's best FPSers, and he's by no means out of shape, pimple faced, or constantly in a state of undress. (Although, judging by one picture, one of his forearms IS slightly bigger than the other... >.>