Hey! nobody asked you to throw a bunch of scientific FACTS into the discussion!
Theres thems that ride with a helmet on their head, not bungeed to the seat,
and thems thats the ambulance drivers call Donor-Cyclist
But Seriously: If you ride without a helmet- PLEASE ck Organ Donor
on your license,
Let someone get some use of whatevers left after that quick jaunt to the mailbox--the one that ended in contact with a post.....