Cathryn Lewis is Professor of Genetic Epidemiology & Statistics at King’s College London. She leads the Statistical Genetics Unit in the Institute of Psychiatry, Psychology & Neuroscience, and the Faculty of Life Sciences and Medicine. Her academic training is in mathematics and statistics, and she has been involved in genetic studies since her PhD training. Her research aims to identify and characterise genetic variants conferring risk of common, complex disorders, including depression, schizophrenia, stroke and rheumatoid arthritis, with a particular interest in pharmacogenetic studies. She chairs the Psychiatric Genomics Consortium Major Depressive Disorder Working group, and leads the NIHR Maudsley BRC Biomarkers and Genomics theme.