Tell me...

what compells some of these Olympians to test to the "inth" degree all risks for the sake of an Olympic Gold medal?  Don't get me wrong, I have a high regard and appreciation for these athlete, their dedication and determination, especially since I have absolutely no athletic ability whatsoever.  My heart is about to beat right out of my chest as I watch the luge event in progress, athletes reaching up to 90+ miles per hour.  I just hate the idea of having to walk on ice, let alone sled on ice while laying down.  Craziness....pure craziness.