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Did you know?
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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Normal urine is sterile. It contains fluids, salts, and waste products. It is free of bacteria, viruses, and fungi.
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Green tea is able to stop the scent of garlic or onion from causing bad breath.
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There are more sensory neurons in the tongue than in any other part of the body.
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Everyone has one nostril that is larger than the other.