Even with a helmet on, a person's brain is still free to move about in the skull's cerebral spinal fluid, which can cause concussion.
See more videos with Dr. Julian Bailes.
Julian Bailes, MD is a founding member of the Brain Injury Research Institute and professor and chairman of the Department of Neurosurgery, West Virginia University School of Medicine. He is a recognized leader in the field of neurosurgery and the impact of brain injury on cognitive function.
Produced by Noel Gunther, Brian King, and Michael Yoswa, BrainLine.