I also know that the body is capable of amazing feats; otherwise, no one would be able to finish an Ironman Triathlon. Check out the guy, The Guinness World Record Holder for Fitness, at 0:38 to see what he did to obtain such a title.
In the meantime, here are some scenes from today's bicycle ride. There must have been some event going on because I saw, at least, 100 cyclists today on The St. Louis Riverfront Trail and most of the cyclists were whizzing past me on ultra-thin tires.
