Well just browsing the computer from time to time shouldn't hurt.. just to check things and such you know. = )
Edit: I play DDR ( dance dance revolution ) and that keeps me fit, I am lazy and all, and just working out at a gym or something would be boring to me, so I just play that at home with my metal pad and such, keeps me in shape, you could try it if you want, it's really fun. I do play all those ridiculous hard songs, but I have also been playing for a while.
Also, hello again after a long time, Darkmatter. = D