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Approximately 500,000 babies are born each year in the United States to teenage mothers.
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The highest suicide rate in the United States is among people ages 65 years and older. Almost 15% of people in this age group commit suicide every year.
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Acute bronchitis is an inflammation of the breathing tubes (bronchi), which causes increased mucus production and other changes. It is usually caused by bacteria or viruses, can be serious in people who have pulmonary or cardiac diseases, and can lead to pneumonia.
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The Romans did not use numerals to indicate fractions but instead used words to indicate parts of a whole.
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Your heart beats over 36 million times a year.