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

A new study of nearly 15,000 people found that the window of late-night workouts in which sleep is then impacted is actually much larger than previously thought, showing that exercising within four hours of bedtime can have a detrimental effect on shut-eye.

The cross country postseason is heating up, bringing exciting regional action across the nation. This past weekend, several Colorado athletes traveled to Kenosha, Wisconsin, to take on the Brooks XC Championships Midwest.

Athletic running involves a remarkable combination of endurance, strength, and physical resilience. One of the most crucial abilities for every runner is a strong aerobic base, which permits the body to sustain exercise over extended distances without excessive exhaustion.