Myelin

Cool link. http://www.myelin.org/

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... symptom. It is uncommon (although possible) to have a vitamin B12 deficiency unless you lack the intrinsic factor. B12 causes some degree of demyelination if the deficiency has lasted for a relatively long time, but as far as I know this is quite rare. Anyway, myelin acts as a kind of insulator ...

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... know about what it does for the body and how serious deficiency is. Whilst researching, i came across the fact that without B12, the production of Myelin is restriced and Myelin begins to decay around the nervous cells. However, i'm not sure what effect this has on the cell....Is it that Myelin ...

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No. The myelin sheath doesn't let disperse for electric impulses. And the more myelin (the larger diameter of neuron) the faster electric impulses are conducted.

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... messages can travel along a neuron much quicker if we are warming up/exercising ... Does anyone know why this happens and how this is related to myelin sheaths? My only guess is that because the fatty layer of myelin becomes more fluid (due to temperature increase), and it will somehow increase ...

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