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Did you know?
There are 60,000 miles of blood vessels in every adult human.
Did you know?
The horizontal fraction bar was introduced by the Arabs.
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.
Did you know?
If you could remove all of your skin, it would weigh up to 5 pounds.
Did you know?
In the United States, an estimated 50 million unnecessary antibiotics are prescribed for viral respiratory infections.