Originally Posted by
achoo
Stick to reading scientific, published, peer-reviewed papers, not any "research" from any advocacy groups and you'll find UNANIMOUS conclusions that helmets do help prevent head injury.
If you feel like you are at such a high risk for injury, then wear your helmet and be happy. Not all of us feel that we are at such a high risk for injury as you seem to. For most of us, the risks that we are exposed to (small as they might be) are not even alleviated by a bicycle helmet anyway. An inch of styrofoam will do very little to slow down a motor vehicle.