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Did you know?
Giardia is one of the most common intestinal parasites worldwide, and infects up to 20% of the world population, mostly in poorer countries with inadequate sanitation. Infections are most common in children, though chronic Giardia is more common in adults.
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Aspirin is the most widely used drug in the world. It has even been recognized as such by the Guinness Book of World Records.
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If you could remove all of your skin, it would weigh up to 5 pounds.
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Human kidneys will clean about 1 million gallons of blood in an average lifetime.
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It is difficult to obtain enough calcium without consuming milk or other dairy foods.