Nikolai is Associate Professor and Head of the Integrative Physiology Section within the Department of Nutrition, Exercise and Sports at the University of Copenhagen. He shares his cutting-edge research on autologous blood transfusion that shows that even small amounts of blood (i.e. 1/2 bag) enhance performance. He also discusses biomarkers for blood doping, dried blood spot tests for testosterone esters, and the importance of developing high-performance environments to solve big problems in anti-doping.