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To prove that stomach ulcers were caused by bacteria and not by stress, a researcher consumed an entire laboratory beaker full of bacterial culture. After this, he did indeed develop stomach ulcers, and won the Nobel Prize for his discovery.
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Human stomach acid is strong enough to dissolve small pieces of metal such as razor blades or staples.
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The average office desk has 400 times more bacteria on it than a toilet.
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Bacteria have been found alive in a lake buried one half mile under ice in Antarctica.
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Only one in 10 cancer deaths is caused by the primary tumor. The vast majority of cancer mortality is caused by cells breaking away from the main tumor and metastasizing to other parts of the body, such as the brain, bones, or liver.