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The most destructive flu epidemic of all times in recorded history occurred in 1918, with approximately 20 million deaths worldwide.
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The National Institutes of Health have supported research into acupuncture. This has shown that acupuncture significantly reduced pain associated with osteoarthritis of the knee, when used as a complement to conventional therapies.
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Human kidneys will clean about 1 million gallons of blood in an average lifetime.
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Excessive alcohol use costs the country approximately $235 billion every year.
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It is difficult to obtain enough calcium without consuming milk or other dairy foods.