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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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Bacteria have flourished on the earth for over three billion years. They were the first life forms on the planet.
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After 5 years of being diagnosed with rheumatoid arthritis, one every three patients will no longer be able to work.
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Urine turns bright yellow if larger than normal amounts of certain substances are consumed; one of these substances is asparagus.
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Increased intake of vitamin D has been shown to reduce fractures up to 25% in older people.