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

The heart's primary function is to pump blood to all parts of the body, bringing nutrients and oxygen to tissues and removing waste products from them. Even when our body is at rest, our tissues ...

Mammals, from the mighty blue whale to the tiny shrew, inhabit nearly every corner of our planet. Their remarkable ...

Researchers are making ever more sophisticated mini organs in the lab — and now they can grow their own blood vessels. The ...

The human heart is a vital organ that pumps blood through the body. You probably don't even think about it, but your heart is always working — it beats about 100,000 times a day, which adds up ...

Scientists have already created large-scale human tissue in a lab using methods like 3D printing, but it’s been much harder to grow the small, delicate blood vessels that are vital to tissue health.

Being able to study parts of the human heart in-depth has been difficult. That’s because there have only been a handful of options available to study how a diseased or healthy heart pumps blood.

3D-printed blood vessels, which closely mimic the properties of human veins, could transform the treatment of cardiovascular diseases. Strong, flexible, gel-like tubes -- created using a novel 3D ...

A 58-year-old man in the United States is the first person in the world to have had his failing heart replaced with a temporary, titanium blood-pumper. The metal organ looks like it was made ... but ...