Scientists have discovered that red blood cells act as hidden glucose sponges in low-oxygen conditions, explaining why people ...

Running is good for your health, but pushing it too far can take a hidden toll. New research shows that ultramarathons may ...

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.

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

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

Scientists have found that a special component in some people's blood provides them with natural protection against malaria.

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

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

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 ...

Running 170 kilometres over mountainous terrain caused people's red blood cells to accumulate more age-related damage than those of less ambitious athletes ...