Prof. Derwin Chan is a Professor of Psychology at Department of Social Sciences, School of Arts and Social Sciences, Hong Kong Metropolitan University. He is a Chartered Psychologist and a Fellow with the British Psychological Society, and a Chartered Scientist with the British Science Council. His research primarily focuses on psychosocial, motivational, and social cognitive processes underpinning individuals’ behaviours (e.g., avoidance of unintentional doping, physical activity, healthy diets, safety, and disease prevention). Prof. Chan has been recognised as the leading expert who can provide scientific evaluations on the impact/ effectiveness of large-scale community health programmes. While Prof. Chan's research spans a wide range of health contexts, one particular area—unintentional doping—has garnered increasing attention. His work has been instrumental in elevating the prevention of unintentional doping to a strategic research priority and a key global educational initiative for the World Anti-Doping Agency (WADA). He is a member of the WADA Expert Advisory Group of Social Science Research, and a founding member of WADA taskforce of unintentional doping. He is the Editor-in-Chief of Stress and Health, Advisory Editor of Social Science & Medicine, and editorial board member of six other scholarly journals.