Sport and Exercise Medicine (SEM) is the medical specialty which focuses on the importance of exercise and physical activity to improve and maintain health, wellbeing, and quality of life. It seeks to help prevent, treat and manage common, chronic and often serious medical conditions, including arthritis, heart disease, cancers, stroke, obesity, frailty, dementia, low back pain, osteoporosis, osteoarthritis, mental illness and diabetes. It builds on knowledge from Internal Medicine, studying injury assessment, management and rehabilitation, including emergency and acute care, musculoskeletal medicine and chronic disease management, at the individual and population level. It involves care of athletes and teams, including anti-doping, exercise psychology, nutrition, biomechanics, exercise physiology and physical activity for specific populations. An important part of SEM is the promotion and incorporation of safe and effective exercise and physical activity into the daily lives of all community members, whether healthy or unwell, old or young, or elite sporting professionals. This field of medicine has over-lapping and collaborative practice with other medical fields including rehabilitation medicine, General Practice, Public Health Medicine, Orthopaedic Surgery, Accident and Emergency Medicine, General Internal Medicine, Paediatrics, Geriatric Medicine, Neurology and Radiology. It involves the delivery of comprehensive musculoskeletal (MSK) services, managing school aged children, adults and older adults, including those with co-morbidities and chronic disease. It is practiced in hospitals, out in the community, and in collaboration with primary and allied health care services.