Traumatic head and brain injuries are serious injuries to the head often resulting in severe and permanent damage to the brain. Over 1.4 million people experience a traumatic brain injury (TBI) each year. A brain injury affects the individual first: with potential long-term effects such as memory loss and personality changes and can include symptoms such as partial paralysis, sensory loss of sight, speech or hearing and can impact everything from mobility to ability to participate in activities of daily living.