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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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There are 20 feet of blood vessels in each square inch of human skin.
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According to the FDA, adverse drug events harmed or killed approximately 1,200,000 people in the United States in the year 2015.
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The ratio of hydrogen atoms to oxygen in water (H2O) is 2:1.
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According to the National Institute of Environmental Health Sciences, lung disease is the third leading killer in the United States, responsible for one in seven deaths. It is the leading cause of death among infants under the age of one year.