I’ve seen football players wearing these for a while, but never known what they were. I’ve tried googling but was never able to figure it out. Today I saw the term “Q-Collar” somewhere and looked it up, and Voila! Now I know what it is and how it works.

TL;DR it decreases space in between your brain and skull by increasing blood volume by applying gentle pressure to the neck in the right spot, which is meant to keep your brain from sloshing around upon impact, which in turn is supposed to reduce the risk of brain injury.

Did anyone else know what these were? Anyone have any thoughts on them? Anyone worn one?