A Traumatic Brain Injury is not just an isolated event or a final outcome; rather, it is the beginning of a chronic process. For many, symptoms persist long after the initial impact. In a study of over 1,700 adults with mTBI ⁺ following auto collisions, 75% still reported more than three symptoms six weeks later, and these symptoms often persisted for over a year.

_{+Statistics are based on 2025 information}