Bullying can affect everyone—those who are bullied, those who bully, and those who witness bullying. Bullying is linked to many negative outcomes including impacts on mental health, substance use, and suicide. It’s important to talk to kids to determine whether bullying—or something else—is a concern. Kids who are bullied can experience negative physical health, school, and mental health issues. Marci Hertz is at the Centers for Disease Control and Prevention in the Prevention Practice and Translation Branch of the Division of Violence Prevention. Marci oversees CDC’s efforts related to youth violence prevention, including the STRYVE initiative (Striving to Reduce Youth Violence Everywhere).