You must have heard of pacemakers? They are required when the heart's natural system malfunctions, causing it to beat too ...

Add Yahoo as a preferred source to see more of our stories on Google. Electrocardiograms, or ECGs, record the electrical activity of your heart. Randy Faris/The Image Bank via Getty Images Your ...

Gladys Knepper, at 93, had a morning routine that never wavered. She woke up at 6 and made her bed. She got a pot of coffee going and went outside to pick up her copy of the Dubuque Telegraph Herald.

A New Smyrna Beach nurse suffered from a heart rhythm disorder that caused her to faint, until she received a "life-saving" high-tech pacemaker. The Micra AV pacemaker is a leadless device smaller ...