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Did you know?
Vaccines prevent between 2.5 and 4 million deaths every year.
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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Drying your hands with a paper towel will reduce the bacterial count on your hands by 45–60%.
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Thyroid conditions may make getting pregnant impossible.
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Many of the drugs used by neuroscientists are derived from toxic plants and venomous animals (such as snakes, spiders, snails, and puffer fish).