Of course, the half-marathon is attractive to marathon runners because of its ease of recovery and to classic road runners because of its role as a springboard to the full marathon. But the half marathon (at 13.1 miles) is perhaps even more relevant to the 10K (at 6.2 miles) than the marathon (at 26.2 miles).
It's probably obvious to anybody who has trained for any kind of endurance event: in most cases, it's more preferable to train with a group of other runners than it is to train on your own. Not only do these group sessions feel easier and more enjoyable they are also generally faster.
I once struggled with blowing up from heat exhaustion, lack of hydration and under-fueling but I finally figured it out. The more fit I became the stronger and quicker my adaptation to hot weather became. I adopted simple cooling methods like dousing with giant sponges drenched in icy water, ice hats and ice baths.
In order to separate and clarify the elements of breakthrough marathon performance, we need to acknowledge some of the most widespread problems.
There have always been inspirational runners who defy conventional beliefs regarding aging and human performance. The truth of the matter is that the biopsychology of aging remains largely a mystery.