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Did you know?
The average office desk has 400 times more bacteria on it than a toilet.
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Human neurons are so small that they require a microscope in order to be seen. However, some neurons can be up to 3 feet long, such as those that extend from the spinal cord to the toes.
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Blood in the urine can be a sign of a kidney stone, glomerulonephritis, or other kidney problems.
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The modern decimal position system was the invention of the Hindus (around 800 AD), involving the placing of numerals to indicate their value (units, tens, hundreds, and so on).
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There are more nerve cells in one human brain than there are stars in the Milky Way.