Public health can do much to prevent and mitigate the impact of adverse childhood experiences (ACEs) on the health of people in their communities. They can educate about and screen for ACEs, including documentation of ACE scores in electronic health records (EHRs). And they can build capacity, integrate services and increase access to trauma-informed services for children and families. What are ACEs?  According to the CDC, “Adverse Childhood Experiences, or ACEs, are potentially traumatic events that occur in childhood (0-17 years) such as experiencing violence, abuse, or neglect; witnessing violence in the home; and having a family member attempt or die by suicide. Also included are aspects of the child’s environment that can undermine their sense of safety, stability, and bonding such as growing up in a household with substance misuse, mental health problems, or instability due to parental separation or incarceration of a parent, sibling, or other member of the household.”  Background: The ACE Study From 1995 to 1997, Kaiser Permanente collected surveys from 17,000 Southern California HMO members on adverse childhood experiences. More than half of respondents had at least one childhood exposure to traumatic events, a fourth of respondents had at least two childhood exposures to traumatic