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Did you know?
More than 150,000 Americans killed by cardiovascular disease are younger than the age of 65 years.
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Egg cells are about the size of a grain of sand. They are formed inside of a female's ovaries before she is even born.
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In the United States, there is a birth every 8 seconds, according to the U.S. Census Bureau's Population Clock.
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Your chance of developing a kidney stone is 1 in 10. In recent years, approximately 3.7 million people in the United States were diagnosed with a kidney disease.
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The familiar sounds of your heart are made by the heart's valves as they open and close.