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The immune system needs 9.5 hours of sleep in total darkness to recharge completely.
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The B-complex vitamins and vitamin C are not stored in the body and must be replaced each day.
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Excessive alcohol use costs the country approximately $235 billion every year.
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The first oncogene was discovered in 1970 and was termed SRC (pronounced "SARK").
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Stroke kills people from all ethnic backgrounds, but the people at highest risk for fatal strokes are: black men, black women, Asian men, white men, and white women.