What is a concussion?
The word concussion is derived from the Latin word, concussus, which means to shake violently. A concussion is a mild traumatic brain injury or TBI.
Concussion is the most common type of TBI. It happens when an external force is applied to the head and causes stress to the brain tissue. This can be caused by bumping into a wall or counter edge too hard, falling down, or an object making firm contact with the head.