Designing and evaluating behaviour change at scale

Over 25 years, this body of work spans the full arc of behaviour change science — from developing and evaluating the MEND programme, a gold-standard family-based obesity intervention delivered across the UK, USA, Canada, and Australia, to building and testing some of the largest digital behaviour change platforms in obesity management. Across RCTs, population studies, and real-world deployments, the common thread is understanding what it takes to change behaviour at scale, and doing it safely.