Researchers from the University of Southern Denmark and Odense University Hospital have studied tissue from patients with ...

Each 2.54 square centimetre (a square inch) of human skin has six metres (20ft) of blood vessels. Veins hold about 65 per cent of the body's blood and have one-way valves tohelp blood move.

Scientists at Michigan Medicine have uncovered how a common genetic variant linked to high blood pressure causes long-term changes in blood vessel structure—raising the risk of heart attacks and ...

A vasospasm is when one of the arteries carrying oxygen-rich blood throughout your body suddenly contracts. (The word "vaso" means vessel, and "spasm" is a sudden, involuntary muscle squeeze.) ...

Your blood contains several different types of cells, including red blood cells, white blood cells, and platelets. Doctors order blood tests to examine these cells for signs of health problems.