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The familiar sounds of your heart are made by the heart's valves as they open and close.
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One way to reduce acid reflux is to lose two or three pounds. Most people lose weight in the belly area first when they increase exercise, meaning that heartburn can be reduced quickly by this method.
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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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The first oncogene was discovered in 1970 and was termed SRC (pronounced "SARK").
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The Romans did not use numerals to indicate fractions but instead used words to indicate parts of a whole.