"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." Heart attacks are scary, and they happen way too often—the CDC estimates that someone has a heart attack ...

Share on Pinterest For weeks, Son Vang (center) thought his persistent cough was a lingering flu symptom. Then, a chest x-ray revealed he was experiencing heart failure. Image Provided by Son Vang ...

Heart failure happens when the heart is unable to pump blood around the body efficiently. The most common symptoms of heart failure are shortness of breath, fatigue, cough, and general weakness.