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 ...

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

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, ...

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.

Efforts to develop lab-grown blood cells for blood transfusions may soon materialize. Since 2021, the National Health Service (NHS) in the United Kingdom has been working on RESTORE— a project ...

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.

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 ...

Your blood cells work tirelessly to keep you alive, carrying oxygen throughout your body and fighting off infections. But hidden in your daily meals are foods that can silently compromise these vital ...