Scientists have engineered the first fully human-made bone marrow system, recreating the complex mix of cells, vessels, and nerves that normally live deep within our bones. This breakthrough lets ...

Your Blood Vessels Could Circle Earth Four Times Laid end to end, an adult's blood vessels could circle Earth's equator four ...

The prospect of diagnosing cancer through painless methods—such as a simple AI-assisted blood or urine test that detects tiny ...

When the medical world was agog over the discovery that blood circulates through the body, imaginative surgeons tried to transfuse sheep’s blood into human patients weakened by too generous ...