there's some research suggesting that bicycle helmets are harmful. In part because they are pretty useless at protecting against the type of accidents that actu

there's some research suggesting that bicycle helmets are harmful. In part because they are pretty useless at protecting against the type of accidents that actually cause severe head trauma, and then also because they seem to induce risky behaviour from both cyclists and cars around them. And then finally because they significantly reduce uptake of cycling which means people are doing other unhealthy things instead. (I'm not actually arguing a position here, just saying that this is not as clear cut as you might think).