I have crashed 1 street bike and several offroad 2,3 and 4 wheeled machines while wearing helmets and never once ended up dead. I do though still have all my teeth, my nose and both eyes. My streetbike crash was a 45mph highside where I hit the road face first. Full face helmet seems to have saved my life and I still wear them to this day. You won't convince me otherwise. Now I am sure another statistic you won't hear in any of the bable, from the non-helmet touting fools, is that in the cases of the people killed wearing a helmet is what kind of lid they had on. I would imagine the standard non-DOT, non-Snell, butter dish style miniature half assed helmets with the fake DOT sticker probably do make the crash worst and would probably increase your chances of dieing in a crash. If they are wearing a full face modern helmet that was properly cared for I tend to believe they will increase your chances of living a long life.