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The immune system needs 9.5 hours of sleep in total darkness to recharge completely.
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Certain rare plants containing cyanide include apricot pits and a type of potato called cassava. Fortunately, only chronic or massive ingestion of any of these plants can lead to serious poisoning.
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More than 34,000 trademarked medication names and more than 10,000 generic medication names are in use in the United States.
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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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It is difficult to obtain enough calcium without consuming milk or other dairy foods.