Building Health Throughout the Life Course elucidates how health develops and changes throughout the life course, and how the use of the life course approach among public health practitioners can ensure that health as a human right is achieved for all individuals. It describes the life course vision of health that focuses not only on diseases and their consequences, but rather on achieving long, healthy, active, and productive lives. The book consists of three stand-alone parts. Part 1, “Concepts”, aims to illuminate the complexity of health through the understanding of the life course approach. It can be used to familiarize oneself with the evolution and meaning of the life course, which serves as a basis for effective public health practice. Part 2, “Implications”, identifies the implications for the operationalization of the life course approach in public health. It translates the technical language of the life course literature to understand how the application of the life course approach requires changes in health systems, policies, research, and practice. Part 3, “Application in Public Health”, identifies key opportunities to strengthen the adoption of the life course approach in public health practice. It describes concrete, evidence-based actions to improve health and well-being through the promotion and generation of skills throughout the life course. This book aims to help decision-makers and public health professionals to understand the life course meaning and concepts, which is essential to comprehend how health develops and changes throughout the life course. The book also describes how the life course model allows us to address health disparities by generating mechanisms to improve health and well-being by promoting the vision of health as the product of a series of experiences that contribute to or detract from health in the near and long term.