You mentioned a preventative measure, but my first comment is going to be about management and some of the research I'm doing right now.
I mentioned that we're doing some exercises to help people get back to their normal functioning, and one of the areas we focus on is the strengthening of the neck and neck exercises, because even if it's not part of the concussion injury itself, you often see that co-occurring with the injury of concussion, where somebody has issues around their neck, the neck muscles and something going on there. That's certainly an area that we want to look at.
In terms of prevention, this is still an area that's equivocal in the literature, but it seems that strengthening the neck to prevent concussions would be a good area to look at.