Remember kids... always wear a helmet. (The almighty bikeradar helmet thread)

Some Oliver bait- what harm can wearing a helmet do?

Not in the sense of enforced helmet wearing as in Australia with the concomitant drop in bicycle usage.

I take Tricity's point about cars giving less room to cyclists wearing a helmet on board also.

My initial question also assumes that the helmet is worn correctly- not as VV says like a beret.

EDIT: I am perfectly willing to admit that when I hit the deck this year the helmet that I was wearing did nothing.

There is the argument that helmets increase the risk of torsional brain injury, because they whip your head round if struck. I haven't examined the evidence for this, but there is one guy, mentioned in that Oz article I posted, who has set up a company to develop helmets that dampen rotational impact to reduce this.