It's a basic concept. Brain trauma is about $10K for every 20 minutes in the ER and the cagers don't like paying the bill. My solution is simple, just ink DNR on your chest, then ride sans helmet. Personally, my brother was med evac pillot til he burned out and he saw way too many brains on the road from the donor-cycle gang. I hate it but I've always worn a helmet for the past thirty-five years; haven't had to test it yet to see if it really works.
