On February 26, 2021, the U.S. Food and Drug Administration authorized marketing of Q-Collar, a device developed by Q30 Innovations, LLC, to be worn around the neck during sports activities to protect the brain from traumatic brain injury (TBI) associated with repetitive sub-concussive head impacts. The C-shaped collar device applies compressive force to the neck and increases blood volume to help reduce movement of the brain within the cranial space which may occur during head impacts. By reducing movement of the brain, the device may reduce the occurrence of specific changes in the brain that are . . .