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 ...

A new study has found that during exercise, the vagus nerve, essential to the body’s ‘rest and digest’ response, has a more important role in heart function than we thought. The findings could be ...

Heart health is no coincidence, but the result of many small decisions. These are the most important building blocks for our ...

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

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

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 ...

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

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

A new trial suggests that people with heart disease who have higher blood potassium levels have a lower risk of heart failure.