The document provides an overview of the brain and brain injury, including: - Statistics on brain injury incidence in Ontario, with motor vehicle collisions as a leading cause - Descriptions of the main parts of the brain and their functions, including the brain stem, cerebellum, cerebrum, frontal lobes, parietal lobes, occipital lobes, and temporal lobes - Definitions of mild, moderate, and severe brain injury classifications based on factors like loss of consciousness and Glasgow Coma Scale scores - Many potential cognitive, behavioral, emotional, communication, physical, and psychosocial challenges that can arise from brain injury - An outline of the typical process from accident to rehabilitation, involving various medical units and