This document discusses adverse childhood experiences (ACEs) and their impact on health. It begins by outlining the intent to understand how ACEs affect health, explore our own pasts, and heal from adverse experiences. It then discusses how ACEs can impact brain development, the immune and nervous systems, and attachment. The rest of the document outlines the ACE study, details 10 categories of childhood adversity, and explores the physical and mental health impacts of high ACE scores. It concludes by offering suggestions for what individuals and parents/teachers can do to address ACEs, including self-care strategies like mindfulness, expressing emotions, and seeking help when needed.