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Approximately 15–25% of recognized pregnancies end in miscarriage. However, many miscarriages often occur before a woman even knows she is pregnant.
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This year, an estimated 1.4 million Americans will have a new or recurrent heart attack.
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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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The immune system needs 9.5 hours of sleep in total darkness to recharge completely.
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Fungal nail infections account for up to 30% of all skin infections. They affect 5% of the general population—mostly people over the age of 70.