Medical News Today by Lauren Sharkey 6/10/2019
A traumatic brain injury (TBI) can be mild or severe, but each case signals a disruption in the usual functioning of the brain.
Doctors tend to refer to less serious TBIs as concussions. These events are more common, resulting from the likes of car accidents, falls, and sports injuries.
Symptoms range from headaches, dizziness, and nausea to problems with cognitive and sleeping functions.
Most people completely recover from a concussion in a short period of time, but some may experience lasting effects — especially if they have had a mild TBI before. Multiple concussions can lead to memory problems and issues with concentration and balance.