@ConGovDeIn Sorry for seeing this so late. Articles are not for pedagogic purposes. In neuropathic conditions, neurons have a problem; now whether this means the immune system attacks myelin and what that means can only be really understood if you grab a textbook and read it thoroughly. With a little neural anatomy knowledge, you can read Guyton & Hall's neurology section, then you'd probably have enough background knowledge for most journal articles about different neurological conditions to be
Is there any way of comparing magnetic moment of $\ce{Co^2+}$ and $\ce{Cr^3+}$ by just going through their electronic configuration? Or is it just experimental data?