Physiotherapy is concerned with the assessment, diagnosis and treatment of disease and disability through physical means rather than by drugs helping to restore movement and function to as near normal as possible. It is a healthcare profession with a science foundation and is held to be within the sphere of conventional rather than alternative medicine. A more formal definition of physiotherapy comes from the 2002 Chartered Society of Physiotherapy Curriculum Framework: "It uses physical approaches to promote, maintain and restore physical, psychological and social well-being, taking account of variations in health status. Physiotherapy is science-based, committed to extending, applying, evaluating and reviewing the evidence that underpins and informs its practice and delivery.