Carl graduated in medicine from Cambridge University in 1988. He trained in neurology, stroke and epidemiology in Edinburgh and spent a year in Melbourne where he specialised in movement disorders before taking up his present post in 2001. He is married to Gay, a GP, and has one daughter, Helena. A committed Christian, he would like to have more time to serve in his church and develop his interests in Fairtrade and conservation.
His main research interests are in evidence-based medicine and broader aspects of clinical epidemiology such as incidence and prognostic studies, particularly in relation to Parkinson's disease, other movement disorders and stroke. He and his team have established a community-based incidence cohort of parkinsonian patients and controls for long-term follow-up and support a number of non-industry sponsored clinical trials and Cochrane reviews, whilst also trying to promote multidisciplinary neurology research in Aberdeen.