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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.
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Human kidneys will clean about 1 million gallons of blood in an average lifetime.
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About 100 new prescription or over-the-counter drugs come into the U.S. market every year.
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Your heart beats over 36 million times a year.
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An identified risk factor for osteoporosis is the intake of excessive amounts of vitamin A. Dietary intake of approximately double the recommended daily amount of vitamin A, by women, has been shown to reduce bone mineral density and increase the chances for hip fractures compared with women who consumed the recommended daily amount (or less) of vitamin A.