Is sport good for health? Generally many people will agree that the practice of sport is a good thing for health. But is really the case ? A moderate practice of sportis certainly a very good thing , but an intensive or a professional practice is a entire different matter. For example if we consider the life esperancy, we can see for example (but they are others) that professional americans players have a life experancy of 56 years wich is not great indeed. The case of the Sumo in Japon is worse, it's rare that a sumo live more than 50 years (but they have a semi-god status and all the women they want ... Hey beautifull loser dont you want to be a sumo ). Concerning Soccer (european football) many of them have their knees destroyed after years of practice. The doping also, is a very bad factor, which can explain (Pittsburgh Penguins #87 Sidney Crosby Black ) but not totally this diminution of life esperancy. The debate is open : let's enter the AI' s champions in the arena !