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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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The calories found in one piece of cherry cheesecake could light a 60-watt light bulb for 1.5 hours.
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About one in five American adults and teenagers have had a genital herpes infection—and most of them don't know it. People with genital herpes have at least twice the risk of becoming infected with HIV if exposed to it than those people who do not have genital herpes.
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The immune system needs 9.5 hours of sleep in total darkness to recharge completely.
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More than 4.4billion prescriptions were dispensed within the United States in 2016.