Repeated head impacts may quietly break the brain’s cleanup system
A new study examining cognitively impaired professional boxers and mixed martial arts fighters reports that the brain's waste-clearing system appears to weaken after repeated blows to the head. These findings are scheduled to be presented next week at the annual meeting of the Radiological Society of North America (RSNA). Sports-related traumatic brain injuries represent up to 30 percent of all brain injury cases, with boxing and mixed martial arts among the leading contributors. Sustained head impacts over time are known risk factors for both neurodegenerative and neuropsychiatric conditions. How the Glymphatic System Removes Waste From the Brain The glymphatic system consists of fluid-filled channels that help flush waste materials from the brain. Its function is somewhat similar to the lymphatic system that operates throughout the body. "The recently discovered glymphatic system is like the brain's plumbing and garbage disposal system," said Dhanush Amin, M.D., t...