Ad A. Kaptein is emeritus professor of medical psychology at Leiden University Medical Centre (LUMC), the Netherlands. His research and teaching focus on illness and medical management, in particular chronic respiratory illness and cancer, as well as Illness perceptions, illness narratives, explanatory models, and health humanities.
Brian M. Hughes is Professor of Psychology at the University of Galway, Ireland. He specialises in psychophysiology, health psychology, and the application of psychology to social issues. His books include Psychology's Quiet Conservatism (2025), A Conceptual History of Psychology (2023), The Psychology of Brexit (2019), and Psychology in Crisis (2018).