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 ...

Though an estimated 60 million people around the world have atrial fibrillation, or A-fib, a type of irregular and often fast heartbeat, it's been at least 30 years since any new treatments have been ...

New research in Sweden has produced a “blueprint” revealing how the human heart is built during prenatal development. It offers insights that could lead to improved prenatal care and new treatments ...

Heart development relies on topologically orchestrated cellular transitions and interactions, many of which remain poorly characterized in humans. Here, we combined unbiased spatial and single-cell ...

A naturally occurring gene called Cyclin A2 (CCNA2), which turns off after birth in humans, can actually make new, functioning heart cells and help the heart repair itself from injury, including a ...

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 serious congenital heart defects – has ...

There are moments in medicine that split history into before and after. The discovery of penicillin. The first successful ...