Now that I think about it, I do recall having a headache after the longest Whelen-shooting session I've undertaken so far. Hmmm... Perhaps my body is trying to tell me something by that feeling of euphoria I have every time I put the Whelen down, & start shooting the 7x57 instead.
I find this an interesting thread. I know folks have made similar observations about boxers & linebackers for decades. If we know that shooting can detach retinas, perhaps it's not so much of a stretch to imagine degrees of concussions, as well.
FC
