Dr Tom Thompson is a Research Fellow within Plymouth University Peninsula Schools of Medicine and Dentistry, supported by grants from several National Institute of Health Research grants and he is currently the Principal Investigator on a Research for Patient Benefit funded systematic review of physical activity and the prevention, reduction, and treatment of alcohol and substance use across the lifespan (The PHASE Review: https://www.plymouth.ac.uk/research/primarycare/a-systematic-review-of-physical-activity-for-alcohol-and-substance-use-disorders). Other research focuses on nicotine and alcohol addiction, and the design and evaluation of complex behavioural interventions aimed at addressing multiple behaviours among disadvantaged groups. He has published numerous journal articles and authored book chapters relating to addiction. He is a member of the Cochrane Tobacco Addiction group and is a co-author of the Cochrane review on Motivational Interviewing for Smoking Cessation. His primary research interests include addiction, physical activity, mental health, multiple behaviour change, and the design and evaluation of complex interventions.