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 ...

The heart works tirelessly throughout life, pumping approximately 2,000 gallons of blood daily through a complex network of vessels that nourish every cell in the body. When this vital organ begins to ...

A new gene therapy can reverse the effects of heart failure and restore heart function in a large animal model. The therapy increases the amount of blood the heart can pump and dramatically improves ...

Science writer Mary Roach is fascinated by the human body, especially, she says, the "gooey bits and pieces of us that are performing miracles on a daily basis." Take the human heart, for instance. If ...

After a heart attack, the heart struggles to recoup and maintain energy. One third of patients develop heart failure as a ...

We all know that the heart, along with the brain, is the most important organ for the body that is responsible for pumping blood. However, there exists a "second heart" as well, which functions inside ...