In reply to captain paranoia:
> I knew someone who fell off her horse. The helmet protected her head, but she died at the scene, in a friend's arms, with a broken neck.
> Which is the perennial problem with helmets; protect the brain, but significantly increase the lever effect on the neck.
It's probably worth asking for the neck to be checked out after an 'off', I once read of a man who had fractured his neck vertebra in a bike accident. While concussed I didn't think to have my aching neck checked out after headbutting a drystone wall with my bike helmeted head, it can be tricky to remember these things with a shaken up head.
Post edited at 10:55