Somebody's wife or grandmother. Maybe yours. It wasn't like her earlier heart attack. Without warning or complaint, she slipped unconscious to the shopping mall floor. You check for a pulse. Nothing.

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A study in the Journal of the American College of Cardiology found that people experiencing sudden cardiac death at an exercise facility had a higher rate of survival than at other indoor places, ...

Every year, hundreds of thousands of people experience cardiac arrest outside of hospitals. For most, the odds are grim. Only about 10% survive. But what if a simple change in how we use ...