Researchers are still learning why it is that head trauma is the main factor for CTE, but not all people with head trauma develop CTE.
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Produced by Noel Gunther and Erica Queen, BrainLine.
About the author: Robert Cantu, MD
Robert Cantu, MD is chief of Neurosurgery Service, chairman Department of Surgery, and director of Sports Medicine, Emerson Hospital; clinical professor, Department of Neurosurgery, and co-director, Center for the Study of Traumatic Encephalopathy, Boston University School of Medicine.