One minute from now, someone is going to hit you in the head. You have the choic...

snowwrestler on Jan 25, 2015 | parent | context | favorite | on: Evaluation of New Zealand’s bicycle helmet law (20...

One minute from now, someone is going to hit you in the head. You have the choice of whether to put on a helmet first, or not. Which would you choose? Thus the benefit of wearing a helmet is demonstrated.