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Did you know?
There are more bacteria in your mouth than there are people in the world.
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The ratio of hydrogen atoms to oxygen in water (H2O) is 2:1.
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Recent studies have shown that the number of medication errors increases in relation to the number of orders that are verified per pharmacist, per work shift.
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The immune system needs 9.5 hours of sleep in total darkness to recharge completely.
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Your skin wrinkles if you stay in the bathtub a long time because the outermost layer of skin (which consists of dead keratin) swells when it absorbs water. It is tightly attached to the skin below it, so it compensates for the increased area by wrinkling. This happens to the hands and feet because they have the thickest layer of dead keratin cells.