Knowledge bank: Doping is widespread not only in elite sports but also in fitness centers across the world and it is a highly underestimated problem. 

Sport can stem the rising tide of youth suicides in many countries according to Australian National University's Colin Tatz. In a presentation to the Play the Game conference, he explained that sport opens the doors of social inclusion to those who feel cruelly excluded.

How does sport impact on the private lives of athletes? That is the topic of a seminar which takes place at Aarhus University the day after the Play the Game conference ends in Copenhagen.

Knowledge bank: The problem of drug abuse in sports is an old topic. The anabolic steroid abuse the main form of doping for more than 30 years, has been in existence since the late fifties.

Knowledge bank: The formation of groups is essential not only to the more formal side of team sports, but also to the recruitment of members to sports clubs and organisations that do not aim at attaining spectacular results or even team work but merely to motivate ordinary people to exercise. Therefore, it is important to know how groups and group formation are viewed in any particular culture in order to assess the possibilities and strategies inherent in the specific culture

Tarahumaras in Mexico and Kalenjins in Kenya are superb runners. Thanks to British colonialisation, the Kenyans have become integrated in world sport which has resulted - amongst other things - in exploitation of young athletes. The Mexicans on the other hand have preserved their own running culture, and Dirk Christensen wonders which group is better off.

Sport has a deep psychological dimension of identity building. When people are playing, they form social patterns expressing who "we" are.