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Did you know?
There are more bacteria in your mouth than there are people in the world.
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Cancer has been around as long as humankind, but only in the second half of the twentieth century did the number of cancer cases explode.
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According to the CDC, approximately 31.7% of the U.S. population has high low-density lipoprotein (LDL) or "bad cholesterol" levels.
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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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In 1844, Charles Goodyear obtained the first patent for a rubber condom.