I dunno about that. I've been in a bicycle accident where I believe the helmet saved me - in more ways than just impact protection. I also scraped my left knee

I dunno about that. I've been in a bicycle accident where I believe the helmet saved me - in more ways than just impact protection. I also scraped my left knee badly against the pavement. If I hadn't been wearing a helmet, I would have scraped up the left side of my face as well.