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If you could remove all of your skin, it would weigh up to 5 pounds.
Human kidneys will clean about 1 million gallons of blood in an average lifetime.
There are more bacteria in your mouth than there are people in the world.
Approximately 70% of expectant mothers report experiencing some symptoms of morning sickness during the first trimester of pregnancy.
There are 20 feet of blood vessels in each square inch of human skin.
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