At this time, take in a good, healthy breath of air, and reenergize yourself. This, believe it or not, is the time to go all out. Really, a fifty yard sprint, as fast as you can. A fifty yard dash at this point in time will not only wake you're mind up, but it will most importantly force blood to rush through your muscles. This effect is called second wind .
Second wind is the mysterious concept that all runners at some point experience.
Scientists cannot exactly define why it happens, but it does. You could call it the 8th wonder of the world. Ok, maybe that's stretching it, but indeed second wind is an interesting concept. Now, approaching the ten minute mark, you physically and mentally are ready to go the distance. Whether it be a mile, two miles, or ten miles, you are now prepared to complete your run.