A life vest isn't just to keep you afloat if you fall into the water. A new kind of life vest is available to help jump start the heart in the event of a heart attack. However, this vest is hidden, and worn underneath your clothing.
It's sort of a wearable defibrillator, and already, 40,000 patients in this country are wearing one of these vests. About 200 of them have had the device kick-start their heart in an emergency.
The vests are intended for patients who, for whatever reason, are not immediately able to undergo surgery for an internal defibrillator.
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