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Did you know?
The average adult has about 21 square feet of skin.
Did you know?
The average human gut is home to perhaps 500 to 1,000 different species of bacteria.
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Hippocrates noted that blood separates into four differently colored liquids when removed from the body and examined: a pure red liquid mixed with white liquid material with a yellow-colored froth at the top and a black substance that settles underneath; he named these the four humors (for blood, phlegm, yellow bile, and black bile).
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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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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.