Collar Reduces Brain Sloshing to Help Prevent Concussions

A new collar that keeps the brain from sloshing around inside the skull and also could help prevent brain injuries caused by concussions. This pressure slightly reduces the amount of blood that flows back into the heart after each beat and lessens the chances of injury. https://www.technologyreview.com/s/600691/new-collar-promises-to-keep-athletes-brains-from-sloshing-during-impact/