I'm sure it's been asked but is there any greater health risk with NiChrome versus Kanthal, Silica vs all the other wicks? I would like to know that I am using the healthiest materials I can when I rebuild. I know nickel can poison, aluminum can give Alzheimer's, silica can cause silicosis. I would think the stainless steel oxide layer that we vape off of would cause some sort of contamination. This started off as me wondering the difference of NiChrome versus Kanthal as far as healthiness goes and became me wondering about all of it.