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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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In 1864, the first barbiturate (barbituric acid) was synthesized.
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If all the neurons in the human body were lined up, they would stretch more than 600 miles.
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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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About 3.2 billion people, nearly half the world population, are at risk for malaria. In 2015, there are about 214 million malaria cases and an estimated 438,000 malaria deaths.