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

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

Every day, your heart pumps about 10 pints of blood 60,000 miles around your body through your circulatory system. That system is made up of blood vessels, the tubes that carry blood throughout your ...

Confused about the differences between a heart attack and heart failure? Learn the distinct symptoms of each and when to seek ...

On World Heart Day 2025, learn how chest pain is evaluated to detect heart attacks. Our expert explains the accuracy and ...

Adolescent athletes' cardiovascular system may adapt to increased cardiorespiratory fitness by increasing blood pressure, ...

A heart murmur is an extra sound that can occur between heartbeats as blood moves through the heart. In babies, it is usually not a cause for concern. Sometimes, however, it can indicate an underlying ...