Brain injuries can range from mild to severe, but should never be taken lightly.
The signs of a brain injury are not always apparent; another reason immediate medical care is essential.
And it's a common misconception that you will always lose consciousness if you have a concussion.
Mild brain injuries can heal within a few weeks, but if left untreated, they lead to severe problems down the road.
Things like mood changes, irritability, insomnia, difficulty concentrating, memory problems, and depression can stem from an untreated brain injury.