Dr. Nikos Ntoumanis is Professor and Director in the Danish Centre for Motivation and Behaviour Science in the Department of Sports Science and Clinical Biomechanics at the University of Southern Denmark. In this episode, Nikos discusses important research he has been conducting on factors that are relevant for doping intentions and doping behaviors, including environmental factors like the style of coaching an athlete receives, as well as athletes’ personal motivations and moral attitudes. He also discusses a recent a PCC-funded meta-analysis that provides an updated look at the evidence on personal and psychosocial predictors of doping use in physical activity settings.