Michael Leitzmann is chair of the Department of Epidemiology and Preventive Medicine at the University of Regensburg, Germany. He holds an MD from the University of Berlin and an MPH in Quantitative Methods and a doctorate in Epidemiology from the Harvard School of Public Health. Dr. Leitzmann serves on numerous journal editorial boards and international scientific committees. His main research interests include the relations of physical activity, sedentary behaviour, diet, and body size to the development and prognosis of chronic disease, particularly cancer. Carmen Jochem is a medical doctor at the local health authority in Regensburg, Germany. She gained her MD at the Ludwig Maximilian University of Munich and the University of Regensburg. She also completed a Master’s degree in Global Health Policy at the London School of Hygiene & Tropical Medicine. Dr. Jochem served as a research associate in the Department of Epidemiology and Preventive Medicine at the University of Regensburg from 2012 to 2016. Her primary academic interest is the relation of physical activity and sedentary behaviour to chronic disease health outcomes. Daniela Schmid holds a graduate degree in Nutrition and Hygiene from the Albstadt-Sigmaringen University of Applied Sciences and a PhD in Nutrition from the Technical University Munich, Germany. She also completed a Master’s degree in Epidemiology at the Ludwig Maximilian University of Munich. Dr. Schmid served as an associate lecturer in the Department of Epidemiology and Preventive Medicine at the University of Regensburg from 2012 to 2016. Her main research interest is the relation of physical activity and sedentary behaviour to cancer incidence and survival.