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Did you know?
The longest a person has survived after a heart transplant is 24 years.
Did you know?
Approximately 500,000 babies are born each year in the United States to teenage mothers.
Did you know?
The Romans did not use numerals to indicate fractions but instead used words to indicate parts of a whole.
Did you know?
The immune system needs 9.5 hours of sleep in total darkness to recharge completely.
Did you know?
There are more bacteria in your mouth than there are people in the world.