Ad Kaptein is a Senior Lecturer in Psychology as applied to Medicine at the Leiden University Medical Centre. He is involved with Psychology & Health (Editor-in-Chief, 1992 - 2000), and the European Health Psychology Society (President, 2000 - 2002). His main research areas are self-regulation and self-management of chronic illness, in particular with regard to respiratory disorders. He has written and edited a large number of research papers, chapters and books in the field of health psychology.

John Weinman is Professor of Psychology as applied to Medicine at the Institute of Psychiatry in the University of London. He is a Fellow of the British Psychological Society and has played a major role in the development of academic and professional health psychology in the UK. His main research areas are cognition and health, communication and decision-making in health care, stress, wound healing and recovery from surgery, and self-regulation and self-management in chronic illness. He was the founding editor of Psychology & Health and has edited and written a large number of books, chapters and research papers in the field of health psychology.