Prof Arnaud Chiolero, MD PhD, is an epidemiologist and public health physician (board certified). He is Full Prof of Public Health at the University of Fribourg, Adjunct Prof at the University of Berne, and Adjunct Prof in the School of Global and Population Health of McGill University. Since October 2019, he is the Director of the Population Health Laboratory (#PopHealthLab) at the University of Fribourg. He is facutly member of the Swiss School of Public Health (SSPH+). He also works as chief-physician (médecin-chef) epidemiologist at the Observatoire valaisan de la santé in Sion, Switzerland, where he oversees health surveillance activities. Initially trained as a medical doctor (MD) at the University of Lausanne in Switzerland, he trained in epidemiology at Erasmus University Rotterdam in the Netherlands (MSc) and at McGill University in Montreal in Canada (PhD). He leads epidemiological research focusing on the life course epidemiology of chronic diseases and public health surveillance.