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Cyanide works by making the human body unable to use oxygen.
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The National Institutes of Health have supported research into acupuncture. This has shown that acupuncture significantly reduced pain associated with osteoarthritis of the knee, when used as a complement to conventional therapies.
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Earwax has antimicrobial properties that reduce the viability of bacteria and fungus in the human ear.
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There are 20 feet of blood vessels in each square inch of human skin.
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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.