Advanced brain imaging, cognitive testing is being used to understand whether indicators in the blood might be able to be used to produce a reliable blood test to help diagnose concussion.
A brain injury will often show up on brain scans as a well-defined area of damage. But often the changes to the brain extend far beyond the visible injury.
While the short-term symptoms of concussion are reversible, research suggests that even a single knock to the head can have severe consequences later in life.
