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Did you know?
Approximately 500,000 babies are born each year in the United States to teenage mothers.
Did you know?
The familiar sounds of your heart are made by the heart's valves as they open and close.
Did you know?
Blood is approximately twice as thick as water because of the cells and other components found in it.
Did you know?
Everyone has one nostril that is larger than the other.
Did you know?
There are more sensory neurons in the tongue than in any other part of the body.