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In the United States, there is a birth every 8 seconds, according to the U.S. Census Bureau's Population Clock.
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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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Asthma cases in Americans are about 75% higher today than they were in 1980.
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According to research, pregnant women tend to eat more if carrying a baby boy. Male fetuses may secrete a chemical that stimulates their mothers to step up her energy intake.
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The horizontal fraction bar was introduced by the Arabs.