The World Federation of Occupational Therapists provides the following definition of Occupational Therapy: “Occupational therapy is as a profession concerned with promoting health and well being through occupation. The primary goal of occupational therapy is to enable people to participate in the activities of everyday life. Occupational therapists achieve this outcome by enabling people to do things that will enhance their ability to participate or by modifying the environment to better support participation.” Occupational therapists use careful analysis of physical, environmental, psychosocial, mental, spiritual, political and cultural factors to identify barriers to occupation. Occupational therapy draws from the fields of medicine, psychology, sociology, anthropology, and many other disciplines in developing its knowledge base. A new discipline of occupational science has been developed to enhance the evidence base of the profession.