Chronic Traumatic Encephalopathy (CTE)
A gradual degeneration in brain function due to repeated head injuries that causes both concussions with symptoms and concussions that are asymptomatic (do not cause symptoms). Once the initial symptoms of concussion have faded, months and years later, new symptoms occur. CTE symptoms start slowly and creep up on the patient. Initially, there may be concentration and memory problems with episodes of disorientation and confusion, dizziness, and headache. It is as if the concussion symptoms were starting to return even without a new head injury.