Faulkner, G., Biddle, S., Mutrie, N. and Gorely, T. 2021. Psychology of physical activity: A 30-year reflection on physical activity and mental health research: Oral Presentation C6.1. The Health & Fitness Journal of Canada. 14, 3 (Sep. 2021). DOI:https://doi.org/10.14288/hfjc.v14i3.675.