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On average, someone in the United States has a stroke about every 40 seconds. This is about 795,000 people per year.
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In 1844, Charles Goodyear obtained the first patent for a rubber condom.
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To combat osteoporosis, changes in lifestyle and diet are recommended. At-risk patients should include 1,200 to 1,500 mg of calcium daily either via dietary means or with supplements.
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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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The familiar sounds of your heart are made by the heart's valves as they open and close.