So, purely anecdotal, how many times have you hit your head whilst cycling? Answers from helmet wearers and non wearers please, I am not interested in the outcome and what may or may not have happened, just how often you have hit your head.
I don't usually wear a helmet any more, but do wear one when mountain biking, as I think I'm more at risk of fairly low speed offs.
The only time I've hit my head when cycling is when I was mountain biking and wearing a helmet. I didn't duck enough under a low branch. The question I ask myself is would I have hit my head without the helmet on? Humans have evolved very good instincts for protecting their head, and, by extension, their brain. The branch only struck the very top surface of the helmet. I think probably I would have missed the branch completely if I had not worn the helmet.
The only other times I have hit my head:
4 years old, fell over in a paddling pool. Lots of blood and stitches required
7 or 8, fell out of a tree. Mild concussion
12ish, fell over in the shower after rugby at school. Serious concussion including memory loss of the hour or two either side of the impact.
20s, fell over when drunk. Broke my arm, but nothing worse than a bump on my head.
20s, slipped on some ice. Just a bruise.
39 (this year), stood on a football when playing with my son, fell over backwards, whacked my head hard on the ground. Saw stars, but no lingering effects.
A handful of low beam/cupboard incidents as an adult, some painful, some leaving bruises, no lasting effects