Most runners struggle not because they lack discipline, but because they’re underfueled. In this post, Coach John explores why fat burns in a carbohydrate flame, how fueling aligns with health, fitness, and performance, and why nutrition isn’t a formula—but an ongoing experiment. The goal isn’t to eat perfectly, but to fuel intentionally so training can actually work.

Most endurance training plans fail not because athletes lack discipline, but because the structure ignores how recovery actually works. Rigid 7-day weeks quietly stack fatigue instead of building durability. Endurance isn’t built by winning the week—it’s built by respecting time, volume, and absorption.

Part 2 of Endless Horizons: Nomadic Adventures of an Ultramarathon Runner in Mongolia.

Ultramarathons, races that exceed the distance of a traditional marathon, are becoming increasingly popular among runners of all levels....