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Bacteria have been found alive in a lake buried one half mile under ice in Antarctica.
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Cucumber slices relieve headaches by tightening blood vessels, reducing blood flow to the area, and relieving pressure.
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Everyone has one nostril that is larger than the other.
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The immune system needs 9.5 hours of sleep in total darkness to recharge completely.
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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.