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Did you know?
There are 20 feet of blood vessels in each square inch of human skin.
Did you know?
Increased intake of vitamin D has been shown to reduce fractures up to 25% in older people.
Did you know?
Vaccines prevent between 2.5 and 4 million deaths every year.
Did you know?
Human stomach acid is strong enough to dissolve small pieces of metal such as razor blades or staples.