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Did you know?
There are 20 feet of blood vessels in each square inch of human skin.
Did you know?
The human body produces and destroys 15 million blood cells every second.
Did you know?
There are more nerve cells in one human brain than there are stars in the Milky Way.
Did you know?
Acetaminophen (Tylenol) in overdose can seriously damage the liver. It should never be taken by people who use alcohol heavily; it can result in severe liver damage and even a condition requiring a liver transplant.
Did you know?
Approximately 500,000 babies are born each year in the United States to teenage mothers.