Colin trained in medicine at University College, Oxford, and Guy’s and Charing Cross Hospitals in London, UK before obtaining a PhD in the Immunology of Graves’ Disease in the Laboratory of Marc Feldmann. He then spent a year as an endocrine fellow at the Massachussetts General Hospital in Boston, USA before completing his specialist training in diabetes and endocrinology as a Lecturer in Bristol. He became a consultant senior lecturer in medicine (diabetes/endocrinology) at the University of Bristol in 1995 and Head of Clinical Research at the Henry Wellcome Laboratories for Integrative Neuroscience and Endocrinology in Bristol in 2002. In 2010, he was appointed to the Chair of Clinical Diabetes and Metabolism and Head of Section at Cardiff University School of Medicine, and became Director of the Institute of Molecular and Experimental Medicine in 2011. He has a long established interest in translational research in the immunopathology of type 1 diabetes and thyroid disease and has published widely in both areas.