This textbook presents a novel approach to addressing the challenges faced by individuals living with histories of chronic stress, trauma, or addiction. It describes how stress, trauma, and/or addiction can cause semi-permanent imbalances in the brain and endocrine systems that give rise to disruptive symptoms. To address these imbalances, the book recommends a variety of rebalancing methods proven in sports and performance psychology settings that can be used to improve day-to-day performances and life quality—and as a pre-treatment for talk therapy.