What about using a defibrillator? An automated external defibrillator, or A.E.D., shocks the heart and resets it. ... telling you to place two pads on the person’s body according to a diagram.

While researchers are divided over whether more people should have automated external defibrillators at home, those who have used one have no doubts. An automated external defibrillator, or A.E.D ...