You may have heard that people who feel faint should sit with their heads between their knees, but is that true? And how can ...

Heart disease is the number one killer of men and women, but it often presents differently depending on sex. There are sex ...

Atrial fibrillation (irregular heartbeat), which causes poor blood flow, is another cardiovascular condition that can cause ...

Valentine's Day is all about the hearts: heart-shaped chocolates, cards, balloons and even pizza. But the heart hasn't always ...