Past the breaking point

The whole idea of success is reshaped by athletes of extreme sports who dare to push the limits. Their idea of success involves teaching their bodies not to listen to their minds when their brain tells them they are in pain and should stop. On the contrary, this is when they learn to forge on.
Consider Tammy Van Wisse, from Victoria, Australia. She apparently started swimming about the age of 11. At the time, she was taunted for being overweight. By 2004, she had swam the equivalent of 1+ 1/2 times around the world and holds many records. She specializes in cold water, distance swimming. In June of 2004. Tammy swam the Gippsland lakes in fridgid waters 24 miles in less than 10 hrs. She attributes her swimming success to eating junk food and teaching her body to metabolise and work efficiently, based on her fat stores.
Consider David Harper who managed to complete Kiehl's Badwater Ultramarathon in sandals. I'm surprised the rubber soles didn't melt onto the asphalt which heated up to 150 degrees. The air temperature rose to 124 degrees. If that weren't enough of a challenge, this is a California trek that begins in Death Valley, the lowest elevation in the Western Hemisphere at 282 feet below sea level. The race finishes at 8,360 feet, covering 3 mountain ranges for a total of 13,000 feet of vertical ascent and 4,700 feet of descent. The race ends at the trail head to the Mount Whitney summit, the highest point in the U.S.A. Not a bad race course, if you live 'on the edge'.
Runners must finish this 'the world's toughest footrace,' in under 60 hours to get a special T-shirt. To get a belt buckle, they must finish within 48 hours. Sound doable? At 40 miles into the 2006 race, Harper had developed terrible blisters. At 80 miles into the race, and after many shoe and sock changes, and repeatedly taping his feat to dull excruciating pain, he opted to wear open-toe Keen sandals. This tactic slowed his pace to a crawl, but he ended up finishing 57th out of 85 runners.
It's worth noting that more people have climbed Mount Everest than have completed this Badwater ultramarathon. Do you really wonder why? Consider the Age's Top Ten world-class races for Athlete Adventurers. Would any be your 'cup of tea?' http://www.adventurecorps.com/news/bw/2006theage.html