Add Yahoo as a preferred source to see more of our stories on Google. The photograph was genuine and showed a so-called "ghost heart" — that is, what scientists call hearts without cells used for ...

The human heart, a powerful, fist-sized organ, is the hardest working muscle in the body. It works 24/7, pumping blood through vessels (its partner in the makeup of the circulatory system), so oxygen ...

The heart is the body's hardest-working muscle. Whether you're awake or asleep, or exercising or resting, your heart is always at work. It pumps blood through arteries to deliver oxygen to organs and ...

With a new MRI technique that shows both heart tissue and blood flow simultaneously, physicians can see where heart defects ...

To be able to observe the blood flow in the artificial heart in real time in the MRI, the researchers an Linköping University had to build a full-scale model of the human circulatory system. Using ...

The findings suggest humans also have a limited capacity for heart repair. For many years, scientists believed the human heart could not repair itself after serious damage. A new study from Australia ...