How does physical health reinforce the effects of Complex PTSD? In book 3, I explore the complex relationship between physical health and Complex PTSD symptoms. During my recovery, I discovered a wealth of information and ground-breaking research that shows how trauma and stress can reinforce a cycle that destroys physical health. This cycle is directly associated with the autonomic nervous system. When chronically activated by stress, damage to the nervous system can result in the very same symptoms experienced during a CPTSD episode. Understanding this helped me formulate a recovery approach that supported physical health improvements along with psychological work.