He is head of Section for Sport Sciences at AU and the co-director of the International Network of Doping Research (INDR).Dr Christiansen’s research has followed two main branches: Doping in elite sport and recreational athletes’ use of drugs in fitness and strength training environments. He has often addressed the athletes’ perspective in order to understand the motives and moral values that lie behind their decisions to use drugs or not to use drugs. He is the author of numerous books, journal articles and book chapters and he often contributes to discussions on sport, body and performance enhancement in the media as well as in the many public lectures he gives.