A massive study found that heart attacks and strokes rarely happen out of nowhere—nearly everyone had warning risk factors ...

An antibiotic commonly prescribed for bronchitis and sinus infections may increase the risk of death from heart problems, but only for people with certain risk factors, a new study suggests. The study ...

Nitric oxide plays an essential part in regulating blood pressure and supporting brain function and muscle function. But ...

For more than a century, cardiovascular disease has remained the leading cause of death in the U.S. Yet these last 100 years ...

Immune system overreactions may be the true culprit of cardiac illness—and lifesaving drugs can calm them down ...

When midlife women show up to the doctor with chest tightness, shortness of breath, nausea, sudden fatigue or a racing heart, the explanation they're given is often swift-and familiar. Stress. Anxiety ...

Add Yahoo as a preferred source to see more of our stories on Google. Taking melatonin for long periods of time could be a sign of underlying heart problems. Long-term use of the popular ...

Dr. Flood said smoking is closely linked to heart attacks, strokes, cancers, and peripheral vascular disease—which can ...

SALT LAKE CITY — During Heart Health Month, expectant mothers need to be aware that pregnancy can put significant stress on the cardiovascular system, with pregnancy-related deaths more than doubling ...

Melatonin supplements may not be the harmless sleep solution millions believe them to be. A sweeping new study tracking more than 130,000 adults with insomnia has uncovered troubling connections ...

Although you may not think of children when you imagine someone with heart problems, congenital heart defects are actually the most common birth defect in the U.S., occurring in about 1% of births.

Research presented at the American Heart Association’s Scientific Sessions 2012 sheds light on heart problems during the winter. Here are the study highlights, provided by the AHA. Heart disease fast ...