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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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Adults are resistant to the bacterium that causes Botulism. These bacteria thrive in honey – therefore, honey should never be given to infants since their immune systems are not yet resistant.
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The B-complex vitamins and vitamin C are not stored in the body and must be replaced each day.
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In 1864, the first barbiturate (barbituric acid) was synthesized.
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Increased intake of vitamin D has been shown to reduce fractures up to 25% in older people.