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Did you know?
There are approximately 3 million unintended pregnancies in the United States each year.
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About 600,000 particles of skin are shed every hour by each human. If you live to age 70 years, you have shed 105 pounds of dead skin.
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In most cases, kidneys can recover from almost complete loss of function, such as in acute kidney (renal) failure.
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Asthma cases in Americans are about 75% higher today than they were in 1980.
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Most childhood vaccines are 90–99% effective in preventing disease. Side effects are rarely serious.