Andrew Steptoe is professor of psychology and epidemiology at University College London, where he is Head of the Department of Behavioural Science and Health, and director of the English Longitudinal Study of Ageing (ELSA). He graduated in Natural Sciences from Cambridge University and completed his doctorate at the University of Oxford. He was previously head of the Department of Psychology and Chair of the Academic Board at St. George’s Hospital Medical School before moving to University College London as British Heart Foundation Professor of Psychology in 2000. He is a fellow of the British Academy, the Academy of Medical Sciences, the Royal Society of Biology, and the Academy for Social Sciences. Dr Steptoe’s research is primarily focused on links between psychological and social processes, physical health, and population aging. He is author or editor of 22 books and around 900 journal articles and chapters.