The science of sudden cardiac arrest.
Journalists and politicians across the country were in shock Friday afternoon at news that Tim Russert, the prominent and beloved NBC correspondent, had collapsed and died suddenly of a heart attack in the network's Washington office. Russert had previously been been diagnosed with several risk factors for a sudden heart attack, including coronary artery disease and diabetes. But his death is still a sad reminder that cardiac arrest can strike anyone without warning—and that when it does, it is often fatal. More
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