This document discusses trauma and its impact on recovery. It defines trauma as an unexpected threat to one's well-being that elicits feelings of helplessness, terror, and isolation. Potential traumatic events include abuse, violence, loss, medical issues, poverty, racism, and family substance use. The brain responds to trauma through fight, flight or freeze responses. Trauma gets stored in "capsules" and can resurface when triggered. Signs of trauma include flashbacks, nightmares, hypervigilance, numbness, and substance abuse. The principles of trauma-informed care emphasize safety, trustworthiness, peer support, collaboration, empowerment, and addressing cultural factors.