Dr Gavin Breslin is a Senior Lecturer in the School of Psychology, Queens’s University Belfast, Northern Ireland. He is a Chartered Sport and Exercise Psychologist, and Registered Practitioner of the Health Care ​Professions Council (HCPC). Gavin has published extensively in the area of mental health and well-being. He has published two books. He led on systematic reviews, cross sectional, prospective, and ​case studies on mental health, and has designed RCT interventions using psychological behaviour change theory to enhance health and well-being for children and adults in schools, sports clubs, prisons, secure hospitals and workplace settings. His key areas of expertise include: health ​behaviour change, intervention design to improve health and wellbeing.