Dr Seneviratne is a Lecturer in the Department of Health Studies at Royal Holloway University of London. She is an Immunologist specialising in Vascular Disease with an interest in environmental modulators of inflammation, focusing on the impact of air pollution and medicinal plants on the atherosclerosis and vascular inflammation. She has published several high-impact papers in leading cardiovascular journals such as Circulation, and Cardiovascular Research and has received prizes from the European Vascular Biology Organisation and International Union of Physiological Sciences. She contributed to Non-Communicable Diseases report for the World Health Organization and the São Paulo Declaration on Planetary Health. She teaches Anatomy and Physiology to undergraduate and postgraduate students. She is also the founder of the Planetary Health education project "Girawa", which educates youth in Sri Lanka, Brazil and Kenya.