Dr. Paul Friedman answers the question: 'Heart Block versus Artery Blockage?' — -- Question: I have been diagnosed with heart block. How does this differ from blockage in one of my arteries?

A leaky heart valve occurs when a heart valve doesn’t close properly, allowing blood to flow backward. During pregnancy, this condition can affect circulation and increase strain on your heart. A ...

A marathon pushes the human body close to its limits. Legs tire, lungs burn and the heart works hard for hours on end. For ...

Rowing machines and treadmills do not challenge your cardiovascular system in the same way, so what is the science behind it? When you purchase through links on our site, we may earn an affiliate ...