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 ...

It has only recently become known that two parallel systems of blood formation exist in the body, originating from different ...

Red blood cells carry oxygen from the lungs to every other organ, and blood-forming stem cells must make about 200 billion new red blood cells each day to keep the oxygen flowing. For many years, ...

Explore the fascinating world of the human body in this animated educational video. Discover the roles of essential organs ...

CHICAGO (CBS) --The Red Cross mission to prevent and relieve human suffering continues even when there's not an emergency, from installing smoke alarms to collecting blood donations, and being in a ...

For patients with a rare type of blood cancer, treatment might finally be coming out of the Dark Ages. People with the chronic condition polycythemia vera make too many red blood cells, thickening ...