Heart murmurs can sometimes be harmless, or they might need to be addressed if they're caused by a heart condition. Here's ...

A silent heart attack is milder than a traditional heart attack but is just as dangerous. Here's what you should know about ...

Orthopnea, the struggle to breathe when lying flat, is an often-overlooked heart attack warning sign affecting 92% of sufferers. This symptom, frequently mistaken for anxiety or acidity, indicates ...

In TODAY.com's Expert Tip of the Day, a cardiologist explains why nighttime is important for cardiovascular health.