Do you ever notice a flutter in your chest? Feel unusually tired even after a good night’s sleep? Get winded from walking up the stairs when that never ...

I place my stethoscope on Brad Hanson’s chest after discussing his diabetes, cholesterol, and thyroid blood levels. Rather than the steady beat of sinus rhythm, I hear a rapid erratic drumming. After ...

(Reuters) - Vice President Dick Cheney was diagnosed with atrial fibrillation on Monday -- a common but serious condition that causes the heart's upper chambers to flutter. The heart's two small upper ...