Pim Assendelft has a special interest in lifestyle modification and early detection of disease in medical care. He is interested in optimizing interventions, but als in the role of the healthcare professional in prevention.After his training as a general practitioner, Assendelft became researcher at the EMGO Institute (Vrije Universiteit) and later at the Amsterdam Medical Center. After being director of the Dutch Cochrane Centre he was head of Guideline development of the Dutch College of General Practitioners (2001 – 2003). In 2004 he was appointed Professor of General Practice and head of department at the LUMC in Leiden. There he was chair of the university profiling area 'Health, Prevention and the Human life cycle'. In 2013 he became professor of General Practice at the Radboudumc and head of the Department of Primary and Community Care. In 2019 he declined as head and was re-appointed as professor Prevention in healthcare.Assendelft always aims to connect research and practice. For example, he is editor of the widely used practice-oriented textbook 'Introduction to evidence-based medicine'. In 2016 he was a member of the Taskforce National Science Agenda ‘Prevention’ of the Dutch Federation of University Medical Centres (NFU).