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 ...
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What Is a Heart Pacemaker?
Millions of people worldwide live with a pacemaker that regulates their heartbeat, but exactly what are these devices and how do they work? Pacemakers can save the lives of heart patients by ...
Your heart runs on electricity! Discover how tiny sparks keep it beating — and how Buffalo inventor Wilson Greatbatch’s “happy accident” led to the pacemaker, a life-saving device that changed ...
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