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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Many of the drugs used by neuroscientists are derived from toxic plants and venomous animals (such as snakes, spiders, snails, and puffer fish).
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In ancient Rome, many of the richer people in the population had lead-induced gout. The reason for this is unclear. Lead poisoning has also been linked to madness.
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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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There are more sensory neurons in the tongue than in any other part of the body.
Secondary response begins more rapidly after exposure to antigen, produces more antibodies, and ...