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The average office desk has 400 times more bacteria on it than a toilet.
There are more bacteria in your mouth than there are people in the world.
Hippocrates noted that blood separates into four differently colored liquids when removed from the body and examined: a pure red liquid mixed with white liquid material with a yellow-colored froth at the top and a black substance that settles underneath; he named these the four humors (for blood, phlegm, yellow bile, and black bile).
After a vasectomy, it takes about 12 ejaculations to clear out sperm that were already beyond the blocked area.
Liver spots have nothing whatsoever to do with the liver. They are a type of freckles commonly seen in older adults who have been out in the sun without sufficient sunscreen.