Doping and sport
This is an interesting question. All the athletes need to sacrifice your live to compete for winning one championship or an olympic medal. I think they are sometimes the temptation to get "special" medicins, censured or liquids. I'm totally sure that all the sporty people take different substances, but where is the border or the limit between legal and illegal thinks?
Can one cyclist take part in the Tour of France, for example, and cycle hundreds of milles without taking some substances?