Occupational therapy is a client-centered health profession that helps people across the lifespan participate in the things they want and need to do through the therapeutic use of everyday activities (occupations). Occupational therapists use their knowledge of the transactional relationship between clients and their contexts and environments to improve clients' ability to engage in the occupations that they want to, need to, or are expected to do or engage in. Occupational therapists provide services to help clients promote health, prevent injury or disability, and achieve maximum functional independence in daily living skills.