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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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More than 150,000 Americans killed by cardiovascular disease are younger than the age of 65 years.
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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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Between 1999 and 2012, American adults with high total cholesterol decreased from 18.3% to 12.9%
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Increased intake of vitamin D has been shown to reduce fractures up to 25% in older people.