It's official - the brain and the health of the immune system are connected. Homeopaths and other so-called "alternative" practitioners have known this for years, but finally it seems there is proof emerging from the School of Medicine in the USA, where research scientists have discovered a clear relationship between the central nervous system and the immune system.
https://news.virginia.edu/illimitable/discovery/theyll-have-rewrite-textbooks
Yet another reason to embrace the holistic approach to health.