Dr Sonja Kahlmeier is heading the Physical Activity and Health Unit at the Epidemiology, Biostatistics and Prevention Institute (EBPI) of the University of Zurich. Her work focuses on physical activity promotion policy and transport and economic approaches. She works on discovery and translational research, implementation and evaluation projects on WHO, EU, national and local level. She serves as Executive member of the Steering Committee of the WHO European Network for the promotion of Health-Enhancing Physical Activity (HEPA Europe). She holds a Masters in Environmental Hygiene from the Swiss Institute of Technology (ETH Zürich) and a PhD in Epidemiology.