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.
Posted on BrainLine April 13, 2012.
Produced by Noel Gunther, Brian King, and Michael Yoswa, BrainLine.
About the author: Julian Bailes, MD
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.
