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Did you know?
The human body produces and destroys 15 million blood cells every second.
Did you know?
Vaccines prevent between 2.5 and 4 million deaths every year.
Did you know?
Cancer has been around as long as humankind, but only in the second half of the twentieth century did the number of cancer cases explode.
Did you know?
There are 20 feet of blood vessels in each square inch of human skin.
Did you know?
Medication errors are three times higher among children and infants than with adults.