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Did you know?
The human body produces and destroys 15 million blood cells every second.
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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Most childhood vaccines are 90–99% effective in preventing disease. Side effects are rarely serious.
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By definition, when a medication is administered intravenously, its bioavailability is 100%.
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The average office desk has 400 times more bacteria on it than a toilet.