A lot of new and novice runners get hooked with the desire to run a marathon. While admirable, a marathon is not a 5K, 10K or half marathon, and unlike those races this is probably biting off a lot more than one really wants to chew.
As an experienced runner, I didn’t dare attempt a marathon until I had been running seriously for a few years, and had already completed many races ranging in distance from the 5K to the Half Marathon.
For me, the marathon was far and away a much bigger physical challenge than even the half marathon. This is no surprise to most experienced runners, and even knowing that going in… the shock to my system was substantial and new.
To detail why the marathon is so much harder, let me go into some of the basic science behind how the body generates energy for running, how it impacts marathon training, and why it may present a beginner too steep a challenge training for a marathon: