When the brain is injured, the body's reparative system calls in the "clean-up cells." Unfortunately, they clean indiscriminately, which can cause more damage.
See more videos with Dr. David Wright.
Produced by Victoria Tilney McDonough, Ashley Gilleland, Justin Rhodes, and Erica Queen, BrainLine.
David Wright, MD is a tenured associate professor in the Department of Emergency Medicine, Emory University, and the director of the division of Emergency Neurosciences.