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Did you know?
There are more bacteria in your mouth than there are people in the world.
Did you know?
Everyone has one nostril that is larger than the other.
Did you know?
Though the United States has largely rejected the metric system, it is used for currency, as in 100 pennies = 1 dollar. Previously, the British currency system was used, with measurements such as 12 pence to the shilling, and 20 shillings to the pound.
Did you know?
Thyroid conditions may make getting pregnant impossible.
Did you know?
Vaccines prevent between 2.5 and 4 million deaths every year.