"It feels like glass running through your veins." Faith Adjei-Sarpong lives with sickle cell disease and, like many others ...

Human bodies make 2 million red blood cells per second. They each live for 120 days and spend that time zooming completely around the body every 20 seconds, carrying oxygen from the lungs to other ...

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.

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, ...

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

Gene variants in red blood cell function may have doomed the hybrid babies of Neanderthals and modern humans. When you purchase through links on our site, we may earn an affiliate commission. Here’s ...

A new study shows that ultramarathons damage and replenish red blood cells in ways that could help treat cancer patients.

A change in the volume of red blood cells has been documented in astronauts since the earliest space missions. Thanks to an experiment conducted aboard the International Space Station, a research team ...