MRI scans of the brains of young football players suggest that repeated blows to the head can change the shape of nerve fibers in the corpus callosum, which connects the two halves of the brain.
(Image credit: groveb/Getty Images)
MRI scans of the brains of young football players suggest that repeated blows to the head can change the shape of nerve fibers in the corpus callosum, which connects the two halves of the brain.
(Image credit: groveb/Getty Images)