My bet is that this has a lot to do with epigentics. The "gene expression" that Mark and Dr. Mercola are always talking about. Feeling good, thinking positively, and expectations of improvement can influence our genes to "turn on" disease-fighting and body-repairing functions. All of you people losing weight, spend a little time in meditation and then will yourself to burn fat. Your body just might listen!
Of course there is no replacement for a lot of real physiological elements, but there is definitely a mental factor. We can't turn on the gene expression for great nutrition or a vaccination.
Stabbing conventional wisdom in its face.
Anyone who wants to talk nutrition should PM me!