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, ...

Scientists have long known that people living at high altitudes, where oxygen levels are low, have lower rates of diabetes than people living closer to sea level. But the mechanism of this protection ...

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. They ferry oxygen, nutrients, and waste ...

Living at high altitude appears to protect against diabetes, and scientists have finally discovered the reason. When oxygen levels drop, red blood cells switch into a new metabolic mode and absorb ...

After a long run or endurance race, you’ll probably feel, at minimum, quite tired, a little sore in the legs, a bit hungry and chuffed with yourself for getting it done. It’s unlikely that you’ll feel ...

A new study from Gladstone Institutes shows red blood cells act as hidden glucose sponges in low-oxygen conditions, explaining why people living at high altitude have lower diabetes rates and pointing ...