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Asthma is the most common chronic childhood disease in the world. Most children who develop asthma have symptoms before they are 5 years old.
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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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Blood in the urine can be a sign of a kidney stone, glomerulonephritis, or other kidney problems.
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Everyone has one nostril that is larger than the other.
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Bacteria have flourished on the earth for over three billion years. They were the first life forms on the planet.