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Although puberty usually occurs in the early teenage years, the world's youngest parents were two Chinese children who had their first baby when they were 8 and 9 years of age.
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Bacteria have flourished on the earth for over three billion years. They were the first life forms on the planet.
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The most destructive flu epidemic of all times in recorded history occurred in 1918, with approximately 20 million deaths worldwide.
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People about to have surgery must tell their health care providers about all supplements they take.
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Nearly 31 million adults in America have a total cholesterol level that is more than 240 mg per dL.