The "Lifestyle Triad"-a conceptual framework encompassing the intricate associations between stress levels, dietary habits, and exercise patterns-serves as a critical determinant of physiological and psychological health in diverse populations. This research provides an exhaustive investigation into the mechanisms by which lifestyle behaviors influence neuroendocrine function, bone mineral density, and general mental well-being. By integrating clinical data from sports medicine, eating disorder recovery, and occupational therapy, the study elucidates the consequences of energy deficiency, particularly functional hypothalamic amenorrhea (FHA), and the restorative potential of nutritional interventions. Utilizing the REFUEL randomized controlled trial as a primary evidentiary base, we analyze how increased energy intake serves as a catalyst for menstrual recovery and skeletal stabilization. Furthermore, the article explores the salutogenic resources of social support and "meaning-in-life" as mediators of stress among healthcare professionals and students. Theoretical models, including Kielhofner’s Model of Human Occupation, are utilized to argue for the necessity of occupational therapy in managing weight gain and systemic illness. The findings underscore that recovery from neuroendocrine disruption requires a synergistic approach that balances physical training with metabolic demands, suggesting that behavioral modifications and institutional wellness initiatives are paramount to preventing the long-term sequelae of chronic stress and malnutrition.