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Did you know?
The average human gut is home to perhaps 500 to 1,000 different species of bacteria.
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People with high total cholesterol have about two times the risk for heart disease as people with ideal levels.
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When blood is exposed to air, it clots. Heparin allows the blood to come in direct contact with air without clotting.
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The top five reasons that children stay home from school are as follows: colds, stomach flu (gastroenteritis), ear infection (otitis media), pink eye (conjunctivitis), and sore throat.
Did you know?
There are 20 feet of blood vessels in each square inch of human skin.