Lab-grown hearts with immune cells develop atrial fibrillation after chronic inflammation, offering a new way to test ...

Though an estimated 60 million people around the world have atrial fibrillation, or A-fib, a type of irregular and often fast ...

In a world-first, scientists at Tel Aviv University have successfully 3D printed a tiny human heart using real human cells.

Your heart beats about 100,000 times a day. Sometimes it beats faster and sometimes more slowly, depending on what you're doing and whether, for instance, you're all worked up about something. So ...

In a scientific “first,” a tiny heart structure composed of human cells has been successfully grown within a pig embryo. Interestingly, this heart kept beating on its own for an impressive 21 days.