Lifestyle medicine is a branch of medicine focused on the use of evidence-based lifestyle interventions, such as healthy eating, regular physical activity, stress management, quality sleep, and avoiding risky substances, to prevent, treat, and manage chronic diseases. It emphasizes the role of lifestyle factors as primary determinants of health and chronic disease risk. Lifestyle medicine practitioners work with patients to develop personalized nutrition, physical activity, and behavioural plans to improve health outcomes and quality of life. Lifestyle medicine is an interdisciplinary field that integrates several medical specialties, including nutrition, psychology, exercise physiology, and preventive medicine.