A traumatic brain injury occurs when an external force impacts the brain and impairs certain functions. In a fraction of a second after a car collision, the driver and passenger’s heads can smash into the windshield at the same speed that the vehicle was moving, even as the car frame is buckling. It’s no surprise that the majority of reported TBIs are results of motor vehicle crashes, with almost half of those hospitalized experiencing long-term disability. [3], [4]