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Human neurons are so small that they require a microscope in order to be seen. However, some neurons can be up to 3 feet long, such as those that extend from the spinal cord to the toes.
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Between 1999 and 2012, American adults with high total cholesterol decreased from 18.3% to 12.9%
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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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The Romans did not use numerals to indicate fractions but instead used words to indicate parts of a whole.
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The ratio of hydrogen atoms to oxygen in water (H2O) is 2:1.