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Author Question: The nurse who works in a sleep clinic knows that approximately _____ of adults suffer from insomnia. ... (Read 20 times) |
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Vaccines prevent between 2.5 and 4 million deaths every year.
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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.
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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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About 100 new prescription or over-the-counter drugs come into the U.S. market every year.
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The familiar sounds of your heart are made by the heart's valves as they open and close.