SCIENTISTS have developed a way of assessing the ability of red blood cells to deliver oxygen by measuring their shape. This test could improve specialist transplant and transfusion practice as well ...

Red blood is the exception, not the rule. Evolution has painted it green, purple and white in animals that push physiology ...

Blue blood may look alien, but it’s one of evolution’s most elegant solutions to life in extreme environments. Here’s how ...

Scientists have uncovered a new biological mechanism behind tissue and organ damage in low-oxygen conditions like heart attacks, strokes, and severe COVID-19. Bursting red blood cells—not traditional ...

The American Red Cross is calling for more blood donations from people who are African American, Black or multiracial, saying ...