This piece is incredibly helpful. I remember when I was with a physical therapist who was working to determine why I had a blood flow blockage. It turned out I was "armoring" my tail end constantly. We worked to unlearn the bad behavior, but what sticks with me is how she looked at me when she asked, "What are you defending from?" At that time, I had no idea. It was a few years later that c-PTSD manifested in my life as a term I could related to and understand that I was defending against being hit. I still do it, but now I have done much to balance my musculature to prevent the armoring pulling my back out of alignment, pinching nerves and blocking blood flow.