There are numerous studies on mindfulness, including its physical affects on the brain. But there doesn't seem to be much definitive work on concepts such as the "mindbody" as promoted in John Sarno's The Divided Mind. It is always seductive to think that there is a simple solution, but I don't think that is reason enough to be as dismissive as this article is. There are also numerous studies on the physical impacts of stress.
Nonsense from a non-scientist who doesn't even have a job as a researcher. Her arguments are riddled with logical fallacies (mostly straw men).