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, ...

Every year, thousands of athletes line up for ultramarathons, those punishing races that stretch 50 miles, 100 miles, or beyond over mountain terrain. Most runners worry about blisters, muscle cramps, ...

Add Yahoo as a preferred source to see more of our stories on Google. A Blood study finds ultra-endurance races can stiffen red blood cells and speed molecular aging, with stronger effects at 171 km. ...

For patients with heart failure, blood pumps can be lifesaving. But the very forces that sustain circulation can also harm it ...

The brain relies on real-time delivery of oxygen and nutrients through its microvasculature, which threads through neural tissue like electrical wires. While modern imaging technologies allow ...

Add Yahoo as a preferred source to see more of our stories on Google. Currently, to treat conditions such as leukaemia, damaged blood cells need to be replaced in a stem cell transplant. But ...

A new study uncovers how diabetic red blood cells release toxic packages that damage blood vessels, revealing a promising path for preventing serious complications. EVs derived from RBCs of patients ...

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 ...