Toughest Footrace on Earth

I am inspired and motivated to read a friend's blog about his preparation for an impressive challenge:

"The Marathon Des Sables (MdS) it is known as the toughest footrace on Earth. The distance covered is 243km's in the Sahara desert, run in 49 degrees Celsius heat while every athlete carries his or her own equipment, food etc. weighing in at around 9-13kg's."Please visit his blog to find out more about the race and the charities he is raising funds for:
http://theroadtomds.blogspot.com/2012/02/this-is-what-its-all-about.html#comment-form