The field of health psychology has undergone transformative growth and development over the past 20 years This two-volume set captures the evolution of the field, providing a comprehensive and up-to-date reference for researchers, practitioners, and students. Each volume delves into critical aspects of health psychology, from foundational theories and methods to practical applications and interventions. This set is essential reading for those seeking to understand and apply health psychology principles to improve health and wellbeing outcomes. Volume One: Contexts, Theory, and Methods in Health Psychology The Sage Handbook of Health Psychology, 2e Volume One: Contexts, Theory and Methods in Health Psychology is focused on the foundational contexts, theories, and methods that underpin health psychology today. The Handbook covers diverse perspectives, including socio-political, cultural, and ethical issues, and provides an in-depth exploration of biological health psychology, theories of health-related behavior, and advanced research methodologies. Essential for postgraduate students, researchers, and practitioners, this Handbook offers a comprehensive overview of the current state of research and knowledge in health psychology. Section One: Contexts and Perspectives Section Two: Theories of Health-Related Behavior Section Three: Biological Health Psychology: Theories and Approaches Section Four: Methods and Measurement in Health Psychology Volume Two: Issues, Debates and Applications of Health Psychology The Sage Handbook of Health Psychology, 2e Volume Two: Issues, Debates andApplications of Health Psychology covers the practical applications of health psychology, addressing intervention development, health improvement strategies, mental health and wellbeing, health protection, and the integration of health psychology into policy and professional practice. With contributions from leading experts, this is an indispensable resource for those looking to apply health psychology principles to real-world challenges. This Handbooks is a must-read for postgraduate students, researchers, and practitioners aiming to improve health and wellbeing outcomes through evidence-based practices. Section One: Issues and Debates in Health Psychology Section Two: Intervention Development Approaches Section Three: Health Improvement Interventions and Preventive Behaviors Section Four: Improving Mental Health and Wellbeing Section Five: Health Protection Interventions and Long-term Conditions Section Six: Health Psychology in Practice