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Did you know?
The average office desk has 400 times more bacteria on it than a toilet.
Did you know?
The Babylonians wrote numbers in a system that used 60 as the base value rather than the number 10. They did not have a symbol for "zero."
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There are more sensory neurons in the tongue than in any other part of the body.
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If all the neurons in the human body were lined up, they would stretch more than 600 miles.
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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.