A concussion or mild brain injury usually causes a cascade of chemical changes within the brain. Most mild TBIs take 5-10 days to get back to normal, but every injury is unique.
Posted on BrainLine July 29, 2010. Reviewed December 20, 2017.
Produced by Vicky Youcha and Brian King.
About the author: Jeffrey Barth, PhD
Jeffrey Barth, PhD, is a Professor Emeritus in the UVA Medical School and the Brain Injury and Sports Concussion Institute.