The heart is the body's hardest-working muscle. Whether you're awake or asleep, or exercising or resting, your heart is ...

Healthy Heart Signs: The heart is the engine of the human body, tirelessly pumping blood to sustain life. ... 7 Indicators You Have A Healthy Heart And Good Blood Circulation.

Researchers, using 160 study participants, human blood samples, and mice, ... a cutting off of blood flow to the heart, both followed by a return to blood flow.