I wasn't sure if I should put this here or in the resources area as I can see a fit with both ... here for now
a quick, to-the-point video by Irene Lyon (I think I came across her from someone else noting here) discussing the physiology of how traumatic stress disregulates the nervous system leading to chronic health conditions .... I appreciated both the brevity and how much it makes sense and thought others may find it useful too
https://www.youtube.com/watch?v=v0DSmN0bkPQ