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The immune system needs 9.5 hours of sleep in total darkness to recharge completely.
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The first oncogene was discovered in 1970 and was termed SRC (pronounced "SARK").
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The first war in which wide-scale use of anesthetics occurred was the Civil War, and 80% of all wounds were in the extremities.
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Excessive alcohol use costs the country approximately $235 billion every year.
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According to animal studies, the typical American diet is damaging to the liver and may result in allergies, low energy, digestive problems, and a lack of ability to detoxify harmful substances.