Your circulatory system works all day, every day, to pump oxygen throughout your body. There are cardiovascular conditions that can impact this system. Your circulatory system, also known as your ...

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

Your heart beats billions of times in a lifetime, tirelessly pumping blood, supporting life, and adapting to activity. Learn about its rhythms, lifespan, and importance in overall health.