Get to know the functions of your heart, blood vessels, and blood itself and how they work together to maintain your health.

Valvular regurgitation is when blood flows backward through the chambers of your heart. It can be mild and not cause symptoms, or it can be life threatening. Your heart is a muscular organ that ...

Your heart is a muscular organ that helps circulate your blood, which delivers oxygen and nutrients to your tissues. There are four chambers and four valves in your heart, and each ensures proper ...

A heart PET scan is a noninvasive imaging test that uses a small amount of radiation. It helps doctors understand how the heart functions and whether it is healthy. Cardiac or heart PET scans create ...

Using magnetic cameras, researchers at Linköping University, Sweden, have examined blood flow in an artificial heart in real ...

When a doctor listens to the heart of a person with a heart murmur, they may hear a whooshing, swishing, humming, or rasping sound. This is due to rapid, turbulent blood flow through the heart.

Researchers have developed a method for cheaply producing heart valves in the span of minutes that are functional immediately after being implanted into sheep. The scientists call their method ...

Learning that your newborn has a heart murmur can be scary news. But heart murmurs in newborns are actually extremely common and often harmless. Read on to learn more about what to look out for if ...