Either if you ran long distances, like a 42k marathon, or simply you are a fan to run up to 10k, surely you will be interested in the following paragraphs.
Here’s a great article that appeared in the New York Times discussing how running a 2:30 marathon is an amazing accomplishment yet these “sub-elite” runners have no chance
Below is am excerpt from Dean Karnazes book 50/50: Secrets I Learned Running 50 Marathons in 50 Days — and How You Too Can Achieve Super Endurance!. As