Extreme endurance running damages red blood cells in ways that may affect their ability to function properly, according to a ...

Extreme endurance training is often seen as a sign of strong physical fitness. However, new research indicates that very long-distance runs may have negative effects on the body.

Running extreme distances may strain more than just muscles and joints. New research suggests ultramarathons can alter red ...

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

Scientists have long known that people living at high altitudes, where oxygen levels are low, have lower rates of diabetes ...

As impressive as a 100km run might look to your Strava followers, the training required to cover extreme distances could irreversibly fast-track your body’s natural aging process.

Ultramarathons might push red blood cells past their limits—accelerating their aging in the process.

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