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

At times, even the smallest entities in the body may arrange themselves to create patterns that are surprisingly ordered. For ...

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 ...

A new preclinical study shows that red blood cells can be tagged in vivo and used as long-lasting carriers for imaging agents ...

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 ...

Red blood cells transport oxygen throughout your body, including to vital organs and tissues. They also help your body get rid of carbon dioxide. Too little or too many red blood cells may be ...

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, ...