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Vaccines prevent between 2.5 and 4 million deaths every year.
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The oldest recorded age was 122. Madame Jeanne Calment was born in France in 1875 and died in 1997. She was a vegetarian and loved olive oil, port wine, and chocolate.
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Most childhood vaccines are 90–99% effective in preventing disease. Side effects are rarely serious.
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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 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.