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 ...

After a long trail race, some of your red blood cells may not bend the way they should. That matters because red blood cells have a tight job description. They ferry oxygen, nutrients, and waste ...

Despite the prominence and growth of ultra-trail running events in recent years, there remains limited research investigating the physiological effects of such extreme distances and the intricate ...

Many brands have now released a trail super-shoe, one that borrows foam and other technical details from the best carbon plate road shoes and translates these for the trails. However, even the most ...

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

On the afternoon of Saturday, September 2, 2023, history was made on the streets of Chamonix, the French town beneath Mont Blanc, Western Europe’s highest mountain. A partisan crowd had reached fever ...

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 ...

After sidelined for 3 years by knee pain, he cuts 4 hours off record time of Adirondack Challenge Imagine running from base camp to the top of Mount Everest five times over seven days. Imagine almost ...

After years of hosting fan-favorite races like the Breck Epic and Race Breck’s Firecracker 50, Summit County is getting a new ultramarathon trail running event — the Summit 200. Race directors Chase ...

The adidas Agravic Speed Ultra 2 is built for going long and going fast on trails. It shines in long runs and ultra-distance races where energy return, comfort and efficiency matter most. Take the ...