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

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 ...

A new running group in Philadelphia is bringing sisterly support to trails throughout the City of Brotherly Love. With a this push, the Philly-based group, Women in Ultra Running, is aiming to help ...

When you buy through links on our articles, Future and its syndication partners may earn a commission. It's the original 100-miler, but that's not the only thing that makes this iconic trail race ...

Four months on from winning Britain’s toughest ultra-marathon, where she ran 268 miles across uneven Pennine terrain, Anna Troup reflects on her achievement with considerable modesty. “People keep ...

New research recently presented by Dr. Timothy Cannon in a poster session at the 2025 American Society of Clinical Oncology conference is seeking to understand whether ultramarathon running is a risk ...

Get any of our free daily email newsletters — news headlines, opinion, e-edition, obituaries and more. Entering the ultramarathon scene can be daunting, especially for casual runners who have never ...

It took about 18 miles for Benny Hickok to realize exactly why the race earned the designation as Indiana’s “toughest trail race.” For starters, the trails guiding racers through the Owen-Putnam State ...