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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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If you could remove all of your skin, it would weigh up to 5 pounds.
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Multiple experimental evidences have confirmed that at the molecular level, cancer is caused by lesions in cellular DNA.
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By definition, when a medication is administered intravenously, its bioavailability is 100%.
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There are approximately 3 million unintended pregnancies in the United States each year.