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.

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

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 ...

In previous experiments, the researchers had seen that mice breathing low-oxygen air had dramatically lower blood glucose levels than normal. That meant the animals were quickly using up glucose after ...

On the average, humans – and pigs, and deer, and birds – who live at high altitudes have better blood glucose control than ...

Researchers collected blood from 23 runners right before and right after two endurance races: a 40-kilometre mountain race and the 171-kilometre Ultra Trail du Mont Blanc. They then analyzed thousands ...

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

Mouse red blood cells infected with the parasite Babesia microti acquired the ability to move, offering new insight into host-pathogen interactions.

BOWLING GREEN, KY.- According to the CDC, about 90,000 non-Hispanic Black or African American people in the United States have sickle cell disease. Outside the U.S., the condition is more common in ...