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

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.

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

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.

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 ...

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

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

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 ...

Blood tests are helpful for monitoring your overall health. But research suggests they can also give us clues about the ...

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 ...