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There are over 65,000 known species of protozoa. About 10,000 species are parasitic.
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The average office desk has 400 times more bacteria on it than a toilet.
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Human kidneys will clean about 1 million gallons of blood in an average lifetime.
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Earwax has antimicrobial properties that reduce the viability of bacteria and fungus in the human ear.
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Limit intake of red meat and dairy products made with whole milk. Choose skim milk, low-fat or fat-free dairy products. Limit fried food. Use healthy oils when cooking.