A-Z of Positive Health sheds light on a range of positive health topics in an easy bite-sized format. Positive health is a rapidly growing field that combines positive psychology (the science of wellbeing) and lifestyle medicine (the science of lifestyle). Whilst lifestyle medicine aims to reduce the incidence of non-communicable diseases, positive psychology aims to help people flourish emotionally, socially, and psychologically regardless of their health status. Thus, together they serve as a powerful approach to treating and promoting mental, physiological, and physical health. Drawing on the latest research and written by experts and thought leaders in the field, this book explains nearly 150 key elements of this new concept of positive health. The concepts explored are not only ground-breaking but are critically needed to advance our understanding of health and wellbeing in a holistic way. Transformative insights from lifestyle medicine and positive psychology approaches are integrated, demonstrating how these topics in positive health are interconnected and how they differ from these approaches. The book summarizes how positive health concepts impact health and wellbeing, as well as highlighting gaps requiring further research. As the demand for effective strategies that not only prevent and treat disease but also promote flourishing continues to grow, this book offers an understanding of the holistic key elements of health and wellbeing. It is valuable reading for professionals across diverse health and wellbeing fields who seek to apply the principles of positive health in a rapidly changing world. It is also essential for introductory courses on positive health, serves as supplementary reading for courses on positive psychology or wellbeing, as well as being useful for healthcare professionals, policy makers, corporate wellness programme developers, and educators in continuing professional development courses.