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Did you know?
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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Your heart beats over 36 million times a year.
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During the twentieth century, a variant of the metric system was used in Russia and France in which the base unit of mass was the tonne. Instead of kilograms, this system used millitonnes (mt).
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People with high total cholesterol have about two times the risk for heart disease as people with ideal levels.
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If all the neurons in the human body were lined up, they would stretch more than 600 miles.