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Evolution of the Biopsychosocial Model: Prospects and Challenges for Health Psychology Jerry Suls University of Iowa Alex Rothman University of Minnesota, Twin Cities Campus Although advances have been made in specifying connections between biological, psychological, and social processes, the full potential of the biopsychosocial model for health psychology remains untapped. In this article, 4 areas that need to be addressed to ensure the continued evolution of the biopsychosocial model are identified and a series of recommendations concerning initiatives directed at research, training, practice and intervention, and policy are delineated. These recommendations emphasize the need to better understand and utilize linkages among biological, psychological, social, and macrocultural variables. Activities that facilitate the adoption of a multisystem, multilevel, and multivariate orientation among scientists, practitioners, and policymakers will most effectively lead to the kinds of transdisciplinary contributions envisioned by the biopsychosocial perspective. Key words: biopsychosocial model, health psychology, behavioral medicine No scientific field seems to advance without an implicit or explicit set of metatheoretical assumptions. The conceptual base for health psychologists in their roles as researchers, practitioners, and policymakers is the biopsychosocial model (Anderson, 1998; Engel, 1977; Kaplan, 1990; Matarazzo, 1980; Schwartz, 1982; Schwartz & Weiss, 1978). This perspective holds to the idea that biological, psychological, and social processes are integrally and interactively involved in physical health and illness. The initially provocative premise that people’s psychological experiences and social behaviors are reciprocally related to biological processes has fueled dramatic advances in health psychology over the past 25 years. Moreover, the premise that these subsystems are nested and inextricably connected has stimulated innovations in the design and…