The Q-Collar "gently compresses the jugular vein to mildly increase blood volume in the cranium, creating a 'tighter fit' of the brain in the cranium. This action is proposed to reduce 'slosh' – i.e., the twisting and slamming of the brain against the skull's interior walls which is one cause of mild traumatic brain injury (mTBI), or concussion."
http://www.prnewswire.com/news-rele...ise-in-reducing-brain-injuries-300285009.html
http://www.prnewswire.com/news-rele...ise-in-reducing-brain-injuries-300285009.html
