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According to the National Institute of Environmental Health Sciences, lung disease is the third leading killer in the United States, responsible for one in seven deaths. It is the leading cause of death among infants under the age of one year.
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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.
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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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Thyroid conditions cause a higher risk of fibromyalgia and chronic fatigue syndrome.
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In the United States, an estimated 50 million unnecessary antibiotics are prescribed for viral respiratory infections.