Learn more about the impact ultramarathon running has on red blood cells and how it may do more harm than good for the body.

A study shows ultramarathon running induces oxidative stress and structural damage in red blood cells. Multiomics analyses ...

By Dennis Thompson HealthDay ReporterTHURSDAY, Feb. 19, 2026 (HealthDay News) — Ultra-marathon runners must be incredibly fit to endure races that can extend more than 100 miles, but their bodies pay ...

In Delhi, community often begins with a shared table, a shared book, and as it turns out, with a shared run. Delhi Run ...

There are trail running shoes for all terrains and distances these days, but what about the best all-rounder off-road running ...

Why overdoing extreme endurance running might not be good for you - Scientists provide proof that ultramarathon athletes’ red ...

Ruth Croft made history in 2025, winning the world’s biggest race in ultra trail-running: a 174km course crossing three countries and circumnavigating Mont Blanc. She tells senior writer Derek Cheng ...

Extreme endurance running damages red blood cells in ways that may affect their ability to function properly, according to a study published in the American Society of Hematology's journal Blood Red ...

The four runners– Nina Norroy, Maegan Guse, Felix Muensterer and Ryan Koraen– make their way from Lion’s Head, Ont., to Tobermory, at the tip of the peninsula–a distance of “only”48 km as the crow ...