On 23 August 2023, Brain, Behavior, and Immunity published the article, “Beyond Biopsychosocial: The Keystone Mechanism Theory of Pain.” In this article, researchers from the United Kingdom and Germany propose the keystone model of pain, which offers a practical balance between the expansive biopsychosocial model of pain and other reductive approaches by providing advantages for the transition from treating at the population level to that of individual people. In this episode of the IASP-PRF Podcast, two of the article’s authors speak with PRF contributor, Lincoln Tracy, PhD, Monash University, Melbourne, Australia. They discuss how the group formulated this theory of pain and how it builds upon the successes of the biopsychosocial model to provide a theoretical foundation for basic and translational pain science to move forward with a strong emphasis on factors that shape an individual’s pain phenotype in a practical manner. Podcast participants include:         Timothy Lawn, PhD, King’s College London, UK         Jan Vollert, PhD, University of Exeter, UK         Lincoln Tracy, PhD, Monash University, Melbourne, Australia (host)