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Did you know?
Human kidneys will clean about 1 million gallons of blood in an average lifetime.
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There are over 65,000 known species of protozoa. About 10,000 species are parasitic.
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The word drug comes from the Dutch word droog (meaning "dry"). For centuries, most drugs came from dried plants, hence the name.
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Urine turns bright yellow if larger than normal amounts of certain substances are consumed; one of these substances is asparagus.
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Russia has the highest death rate from cardiovascular disease followed by the Ukraine, Romania, Hungary, and Poland.