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 ...

Heart health is about more than just the heart itself. It’s a two-way street between the heart and the rest of the body. However, many U.S. adults aren’t aware of the connection between organs.

Medically reviewed by Jeffrey S. Lander, MD Key Takeaways S1 and S2 are the normal heart sounds you hear when the heart ...

Alexandria Nyembwe is a registered nurse and health writer. She has worked in street medicine serving populations experiencing homelessness in Skid Row Los Angeles as well as in cardiovascular care in ...

High output heart failure represents an uncommon type of heart failure that affects fewer than 1% of people seeking medical care for heart problems. Unlike typical heart failure where the heart pumps ...