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Did you know?
There are more bacteria in your mouth than there are people in the world.
Did you know?
Drugs are in development that may cure asthma and hay fever once and for all. They target leukotrienes, which are known to cause tightening of the air passages in the lungs and increase mucus productions in nasal passages.
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There are 20 feet of blood vessels in each square inch of human skin.
Did you know?
If you could remove all of your skin, it would weigh up to 5 pounds.
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Normal urine is sterile. It contains fluids, salts, and waste products. It is free of bacteria, viruses, and fungi.