I hear sports cause bodily harm. They also cause aggression. Being in sports competitively can also lead to steroid use. Playing a game leads to mental exercise. Sure, you're not moving much(unless it's Wii, Move, or Kinect), but I'd rather play make-believe games then come home with something broken. There should be a study on how sports affect teen aggression and how the competitiveness of sports lead to athletes doing things to their bodies that isn't healthy.