As a doctor said to me after a fall (taxi saw a fare and swiped me onto the ground) in which my helmet was trashed “if you weren’t wearing a helmet I’m not saying you’d have been killed, but I doubt we would be talking like this”.
When I got hit from behind in a wand “separated” bike lane I hit the ground hard but not at all on my helmet / head and was concussed. Concussion doesn’t just happen with head strikes as I believe American football studies show.
