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On average, someone in the United States has a stroke about every 40 seconds. This is about 795,000 people per year.
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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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The ratio of hydrogen atoms to oxygen in water (H2O) is 2:1.
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Nitroglycerin is used to alleviate various heart-related conditions, and it is also the chief component of dynamite (but mixed in a solid clay base to stabilize it).
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More than 2,500 barbiturates have been synthesized. At the height of their popularity, about 50 were marketed for human use.