Psychoneuroimmunology, the study of the mind-immune system link, has been formally recognized by mainstream scientists and physicians in the last decade.

“the field of so-called psychon neuroimmunology has been around for more than 30 years in fact if you don't apply standard definitions to that field it's been around for thousands of years but really it's only in the last 10 years or so that scientists and physicians at least standard scientists and Physicians have started to really adopt the understanding and really apply to their studies and their clinical practice this firm idea that the body and mind are linked in this way that emotions can really shape our physical responses and that physical responses also can shape of course our mental responses”