Running extreme distances may strain more than just muscles and joints. New research suggests ultramarathons can alter red blood cells in ways that make them less flexible and more prone to breakdown, ...

Red blood cells, long thought to be passive bystanders in the formation of blood clots, actually play an active role in helping clots contract, according to a new study by researchers at the ...

The amino acid glutamine plays an unexpected role in erythropoiesis, the differentiation of erythroid progenitor cells into mature red blood cells. Ordinarily, glutamine is broken down by stem cells ...

Extreme endurance running damages red blood cells in ways that may affect their ability to function properly, according to a recent study. Although the duration and long-term implications of the ...