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The familiar sounds of your heart are made by the heart's valves as they open and close.
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Approximately one in three babies in the United States is now delivered by cesarean section. The number of cesarean sections in the United States has risen 46% since 1996.
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In ancient Rome, many of the richer people in the population had lead-induced gout. The reason for this is unclear. Lead poisoning has also been linked to madness.
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People with high total cholesterol have about two times the risk for heart disease as people with ideal levels.
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Aspirin is the most widely used drug in the world. It has even been recognized as such by the Guinness Book of World Records.