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

A rat study has found that aerobic exercise may reshape nerves that control the heart. However, the impact was not the same ...

From unexplained chest pain to breathelessness, here are the top 10 signs of heart attack you should never ignore.

In TODAY.com's Expert Tip of the Day, a cardiologist explains how to slow down a racing heart in times of stress.

Night-time heart attacks are more common than many realize, often occurring while people are asleep or in the early morning ...

The heart functions as a muscle which needs continuous movement for proper operation, according to Dr. London. The heart ...

A large new study found that beta blockers did not provide clear benefits for heart attack patients whose hearts were still ...

Are you at risk of an impending heart attack? Here are the top 10 warning signs you need to watch out for - especially at the nighttime.

Researchers from the University of Copenhagen have developed a method that allows for the analysis of thousands of proteins ...

A study involving 281 elite athletes from Australia and Belgium has found that one in six has cardiac measures that would normally suggest reduced heart function. Genetic analysis further revealed ...

Heart disease is the leading cause of death in the United States. One person dies every 34 seconds from cardiovascular ...