An idea only, that when people withdraw into themselves in stressed situations their whole being becomes less flowing, they become more rigid, tense, inflexible in body and mind, could this also extend to our tissues too. For instance posture is known to be affected, tightened jaw, head slightly lowered, jaw jutting just a little, hunched shoulders, tight spine, chest tightened, breathing shallower..... you get the picture...... in long strong stressed situations this becomes the way we are.........

exercise undoes this, as does meditation, dancing, singing, and a whole host of things where we feel freer and our attention is taken away from fighting with the uncontrollable things in our lives.....

We know that stress can cause high blood pressure and heart attacks, and if we have a genetic predisposition towards a particular disorder that is where it comes through. Or even environmental damage....

not saying this is a theory of Pd but a theory of disease, of which Pd is one of many..........

there is stress and stress........ not insignificant that where communities live with severe stress life expectancy plummets...... it is the chronic ongoing stress that does it. On the other hand where communities have a healthy attitude to life, and low expectations of what life ought to offer them often people deal with stress a lot better, have fewer stress related disorders, and maintain mental health better, on a fraction of what is accepted as normal in developed societies....... these are the places that are reputed to have low incidences of PD, though undeniably they also have very low life expectancy as a result of the prevalence of infectious disease, and lack of basic health care.......