Is your heart racing because you’re in love or is it a sign of a more serious heart condition? A cardiologist explains how to spot the difference.

The human heart beats 80,000-120,000 times a day. Long-term ECGs record every heartbeat, and the recording is then ...

Here's the latest on Harbaugh, including his condition, cardiac ablations and how long it will take to recover. Harbaugh has what's called an atrial flutter, which is a type of arrhythmia that ...