Yes, I said it in the text, language exercises can help modulate the voice, know how to breathe, phonetics, volume, but that has nothing to do with what happens in the brain, IT IS A FACT that to speak, processes happen in the brain, and those processes work because there is chemistry that makes them work, it's like people with depression are given antidepressants for what? Well, so that there can be a chemical change that allows them to feel differently.