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Did you know?
There are 20 feet of blood vessels in each square inch of human skin.
Did you know?
No drugs are available to relieve parathyroid disease. Parathyroid disease is caused by a parathyroid tumor, and it needs to be removed by surgery.
Did you know?
Blood is approximately twice as thick as water because of the cells and other components found in it.
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Bacteria have flourished on the earth for over three billion years. They were the first life forms on the planet.
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Approximately 500,000 babies are born each year in the United States to teenage mothers.