Colorado Runner - Colorado's running news, events and results source

GLP-1s work by curbing one's appetite and slowing gastric emptying. A user feels full for a long time because the food stays in the stomach longer. This curbs hunger and food noise—incessant thoughts about food that can fill one's brain.

Marathons are rarely won or lost on one big decision. Instead, they are shaped by dozens of small choices that compound over time. This is the essence of marginal gains, the idea that improving many small elements by even one or two percent can create a meaningful difference across 26.2 miles.

When runners talk about performance, the focus usually lands on training plans, pacing strategies, or nutrition. One of the most powerful influences on race day often goes unnoticed. The environment.