A concussion is a brain injury caused by acceleration or deceleration of the brain within the skull following a significant impact to the head or elsewhere on the body. The impact causes a biochemical imbalance within the brain cells, resulting in decreased blood flow and temporary energy deficits within the brain. Symptoms may include loss of consciousness, headache, pressure in the head, neck pain, nausea or vomiting, dizziness, or balance problems, among others.
To further understand what a concussion is, watch this video for an in-depth whiteboard demonstration from Dr. Cameron Marshall (@Concussion_Doc)!