Add Yahoo as a preferred source to see more of our stories on Google. Michigan State University scientists have built tiny beating heart organoids that can be driven into atrial fibrillation with ...

A deep molecular analysis of failing human hearts suggests diabetes may directly alter cardiac metabolism, but experts differ ...

Your heart will not just give you fear and uncertainty after a heart attack; it can leave scar tissue that stiffens your heart and limits your strength. Many people learn to live with that loss, but ...

Mitral regurgitation is the most prevalent valvular heart disease in humans. It's also common among dogs, especially older ...

We believe the human heart evolved away from the trabeculated structure seen in the other great apes to enhance its ability to twist and contract more efficiently. This increased twisting motion, ...

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 ...

Northwestern Medicine scientists have developed a new way to measure heart contraction and electrical activity in engineered human heart tissues, according to findings published in Science Advances.

Australian researchers have uncovered a crucial new mechanism that helps explain how the heart's major blood vessels form during early development, and how disruptions to this process can lead to ...