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Cyanide works by making the human body unable to use oxygen.
Human stomach acid is strong enough to dissolve small pieces of metal such as razor blades or staples.
Cytomegalovirus affects nearly the same amount of newborns every year as Down syndrome.
Aspirin is the most widely used drug in the world. It has even been recognized as such by the Guinness Book of World Records.
Bacteria have flourished on the earth for over three billion years. They were the first life forms on the planet.
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