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Most childhood vaccines are 90–99% effective in preventing disease. Side effects are rarely serious.
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The B-complex vitamins and vitamin C are not stored in the body and must be replaced each day.
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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).
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There are 60,000 miles of blood vessels in every adult human.
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Aspirin is the most widely used drug in the world. It has even been recognized as such by the Guinness Book of World Records.