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 ...

Researchers have identified a previously unknown biological process that causes tissue and organ damage in conditions where oxygen is low, such as heart attacks and strokes. The study suggests that ...

The circulatory system consists of one heart, five liters of blood, and approximately 96,000 kilometers of blood vessels, responsible for transporting nutrients and waste throughout the body. Water ...