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Did you know?
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.
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The average office desk has 400 times more bacteria on it than a toilet.
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Vaccines prevent between 2.5 and 4 million deaths every year.
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In most cases, kidneys can recover from almost complete loss of function, such as in acute kidney (renal) failure.
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Persons who overdose with cardiac glycosides have a better chance of overall survival if they can survive the first 24 hours after the overdose.