Coronary arteries are a vital part of the human heart, providing it with oxygen-rich blood so that it can work. By comparing the hearts of mammals, birds, reptiles, fish and frogs, a ...
The Healthy @Reader's Digest on MSN

5 silent signs of clogged arteries that will surprise you

Cardiologists reveal the unexpected symptoms of clogged arteries and underlying heart disease that you should know about.
A surprising autopsy marked the first time a bony, supportive structure was documented in an adult human heart, medical ...