I have been using this with my son and I have to add that a lot of people will need extra magnesium for this to work. It's just that some people have magnesium in their water and others don't and the ones who don't will need to take it as a supplement. I have written all about it on my blog:
It also explains why the paleo diet helps (because histamine producing gut bacteria are draining the body of what it needs to get rid of dopamine.) You have to read earlier posts in order to completely understand the schizophrania post.
And yes, much depression, and anxiety and schizophrenia are related in cause, but it isn't a virus (although a virus does have something to do with my son's schizophrenia, and maybe my other son's depression).