Discover the real difference between road-to-trail and gravel running shoes. Our tester reviews 7 top picks from Nike, Hoka, and more.

HealthDay News — Ultra-endurance running accelerates red blood cell (RBC) aging through inflammatory and oxidative pathways, according to a study published online Feb. 18 in Blood Red Cells & Iron.

Maybe you jog for exercise. Maybe you've run 10Ks or marathons. But you haven't run nearly as far as this Utah man. Despite all odds, Eric Johnson has really gone the distance.

Ultra running accelerates red blood cell ageing via inflammation and oxidation, mirroring blood bank storage damage.

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

A study shows ultramarathon running induces oxidative stress and structural damage in red blood cells. Multiomics analyses revealed protein oxidation, copper accumulation, and reduced cell flexibility ...

Pushing the body towards ultra-marathon distances can cause red blood cells to be less flexible, potentially impacting their ability to deliver oxygen and remove waste throughout the body, a new study ...

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

Reminder, this is a Premium article and requires a subscription to read. Ruth Croft made history in 2025, winning the world’s biggest race in ultra trail-running: a 174km course crossing three ...

Kathmandu, March 1 -- It was raining at the finish line when Priya Rai of Nepal grabbed the ribbon and finally got the chance ...

Prakash Lamba of Gurugram completed a 100-km ultramarathon barefoot, inspiring others despite personal loss and limited ...