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There are 20 feet of blood vessels in each square inch of human skin.
If you could remove all of your skin, it would weigh up to 5 pounds.
There are more sensory neurons in the tongue than in any other part of the body.
People about to have surgery must tell their health care providers about all supplements they take.
Approximately 500,000 babies are born each year in the United States to teenage mothers.
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