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Most people who experience this condition outside a hospital die. So know the key symptoms — which differ by sex. Africa Studio / Shutterstock.com
Many people — especially those 40 and older — worry about the risk of having something go wrong with their heart. But do you know the key signs that indicate that sudden cardiac arrest might be imminent? Recently, researchers at the Smidt Heart Institute at Cedars-Sinai conducted a study and discovered that half of people who experienced a sudden cardiac arrest also felt a key symptom 24 hours…