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Did you know?
Each year in the United States, there are approximately six million pregnancies. This means that at any one time, about 4% of women in the United States are pregnant.
Did you know?
Human kidneys will clean about 1 million gallons of blood in an average lifetime.
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The familiar sounds of your heart are made by the heart's valves as they open and close.
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The shortest mature adult human of whom there is independent evidence was Gul Mohammed in India. In 1990, he was measured in New Delhi and stood 22.5 inches tall.
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Cytomegalovirus affects nearly the same amount of newborns every year as Down syndrome.