Fall is in the air, and that means football season is here. Along with the tailgates and touchdowns come concussions. A form of a traumatic brain injury (TBI), concussions are common in many sports and have received more attention lately as former professional athletes have come forward with their stories about long-term struggles that resulted from multiple concussions. The Centers for Disease Control and Prevention External link estimates that between 1.6 million and 3.8 million sports- and recreation-related concussions happen annually in the United States. People who have concussions can experience headaches, personality changes, motor control problems, depression, and insomnia, to name a few symptoms.