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Bacteria have flourished on the earth for over three billion years. They were the first life forms on the planet.
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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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Since 1988, the CDC has reported a 99% reduction in bacterial meningitis caused by Haemophilus influenzae, due to the introduction of the vaccine against it.
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Despite claims by manufacturers, the supplement known as Ginkgo biloba was shown in a study of more than 3,000 participants to be ineffective in reducing development of dementia and Alzheimer’s disease in older people.
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The longest a person has survived after a heart transplant is 24 years.