David Corfield works in the philosophy of science and mathematics. His interests range from probability theory and physics to psychology and medicine, and he looks both to formal methods and historical narrative to understand disciplinary rationality. He is co-director of the Centre for Reasoning at Kent. He is also one of the three owners of the blog The n-category Café, where the implications for philosophy, mathematical and physical of the exciting new language of higher-dimensional category theory are discussed. In 2007 David published Why Do People Get Ill? (co-authored with Darian Leader), which aims to revive interest in the psychosomatic approach to medicine. He intends to carry out further work in the philosophy of medicine.