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Did you know?
Asthma occurs in one in 11 children and in one in 12 adults. African Americans and Latinos have a higher risk for developing asthma than other groups.
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Eating carrots will improve your eyesight. Carrots are high in vitamin A (retinol), which is essential for good vision. It can also be found in milk, cheese, egg yolks, and liver.
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In the United States, an estimated 50 million unnecessary antibiotics are prescribed for viral respiratory infections.
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There are more nerve cells in one human brain than there are stars in the Milky Way.
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The familiar sounds of your heart are made by the heart's valves as they open and close.