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Did you know?
There are more nerve cells in one human brain than there are stars in the Milky Way.
Did you know?
In the United States, there is a birth every 8 seconds, according to the U.S. Census Bureau's Population Clock.
Did you know?
Blood is approximately twice as thick as water because of the cells and other components found in it.
Did you know?
Illicit drug use costs the United States approximately $181 billion every year.
Did you know?
There are more bacteria in your mouth than there are people in the world.