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Did you know?
Pubic lice (crabs) are usually spread through sexual contact. You cannot catch them by using a public toilet.
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More than 2,500 barbiturates have been synthesized. At the height of their popularity, about 50 were marketed for human use.
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The horizontal fraction bar was introduced by the Arabs.
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The human body produces and destroys 15 million blood cells every second.
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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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