Daniel Moore was about 30 the first time it happened. At the end of a long, hot, stressful day, he chugged an ice-cold glass of milk. "It felt like a bunny rabbit trying to jump out of my chest," said ...

Atrial fibrillation, or AFib, is a fast and irregular heart rhythm that, left untreated, can lead to blood clots, stroke and heart failure. It's the most common type of arrhythmia, a potentially ...

Add Yahoo as a preferred source to see more of our stories on Google. Blood clots are among the most feared medical emergencies, and for good reason. They can lead to heart attacks, strokes and death.

Heart conditions are pretty serious on their own—there's no doubt about that. You may experience scary symptoms such as chest pain, shortness of breath, dizziness, swelling and palpitations, for ...

Blood clots are among the most feared medical emergencies, and for good reason. They can lead to heart attacks, strokes and death. But not all clots are dangerous. In fact, clotting is a natural and ...