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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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If all the neurons in the human body were lined up, they would stretch more than 600 miles.
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Human kidneys will clean about 1 million gallons of blood in an average lifetime.
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Asthma attacks and symptoms usually get started by specific triggers (such as viruses, allergies, gases, and air particles). You should talk to your doctor about these triggers and find ways to avoid or get rid of them.
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There are approximately 3 million unintended pregnancies in the United States each year.