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Did you know?
The familiar sounds of your heart are made by the heart's valves as they open and close.
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Allergies play a major part in the health of children. The most prevalent childhood allergies are milk, egg, soy, wheat, peanuts, tree nuts, and seafood.
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Excessive alcohol use costs the country approximately $235 billion every year.
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The ratio of hydrogen atoms to oxygen in water (H2O) is 2:1.
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The average office desk has 400 times more bacteria on it than a toilet.