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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How Defibrillators Work to Save Lives: Science Explained
The investigative minds at Debunked explain how defibrillators function to save lives during cardiac emergencies.
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How defibrillators really work, explained with science
Understand how defibrillators work to restart the human heart.
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