What is a concussion?
A concussion is a mild traumatic brain injury that happens when the brain bangs against the skull, causing bruising and damage to blood vessels and nerves. Concussions are usually not life-threatening, but they can be serious because they may change the way the brain works. “They can disturb neurological function and mental state, and occur with or without loss of consciousness,” says Coates. This means that the ability to think clearly, remember and concentrate can be affected.
Next: Common child concussion symptoms