David Dunger received training in Paediatric Endocrinology at the Hospital for Sick Children, Great Ormond Street. Between 1986 and 2000 he was Consultant Paediatric Endocrinologist, and later Professor of Paediatric Endocrinology, at the John Radcliffe Hospital, University of Oxford. In 2000 he moved to Addenbrooke’s Hospital, University of Cambridge to take up a Chair in Paediatrics. He has a particular interest in the pathophysiology of type 1 diabetes and its complications during childhood and adolescence and the genetic environmental interactions which determine size at birth and childhood growth which may be linked to risk for type 2 diabetes. He is a Fellow of the Academy of Medical Sciences and the European Society for Paediatric Endocrinology awarded him the Andrea Prader Prize in 2012. He was awarded the James Spence Prize by the RCPCH and gave the Banting Lecture at the Diabetes UK Professional Conference in 2016. More recently he received the James Tanner award (British Society of Paediatric Endocrinology, 2019) and the International Society for Pediatric and Adolescent Diabetes Prize of Achievement (2017). He has published more than 600 peer reviewed papers.