Dr. Hugh Calkins answers the question: 'Atrial Fibrillation vs. Atrial Flutter?' — -- Question: My doctor told me I sometimes have atrial fibrillation and at other times have atrial flutter. What ...

Atrial tachycardia is an abnormal heart rhythm where the top chambers in your heart beat quicker than usual. During an atrial tachycardia episode, your heart rate may exceed 100 beats per minute (bpm) ...

Jim Harbaugh endured a concerning moment on the sidelines early during the Los Angeles Chargers' 23-16 Week 6 win over the Denver Broncos. Harbaugh began the Week 6 game coaching the Chargers on the ...