The human body produces and destroys 15 million blood cells every second.
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Anti-aging claims should not ever be believed. There is no supplement, medication, or any other substance that has been proven to slow or stop the aging process.
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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 500,000 babies are born each year in the United States to teenage mothers.
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It is difficult to obtain enough calcium without consuming milk or other dairy foods.