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Did you know?
Human kidneys will clean about 1 million gallons of blood in an average lifetime.
Did you know?
Everyone has one nostril that is larger than the other.
Did you know?
There are 20 feet of blood vessels in each square inch of human skin.
Did you know?
More than nineteen million Americans carry the factor V gene that causes blood clots, pulmonary embolism, and heart disease.
Did you know?
Although puberty usually occurs in the early teenage years, the world's youngest parents were two Chinese children who had their first baby when they were 8 and 9 years of age.