What is a trigger? A trigger is something that can set us off. It can make us depressed, angry or withdrawn. For example, someone might be triggered to want to use drugs or alcohol when someone else talks about using, which then triggers the person to want to use again. It is important for us to understand what triggers us and our mental health concerns in order to stay mentally healthy. Understanding what our triggers our can help us to combat getting into a negative thought process. So,think about and talk to a counselor about what your triggers are in order to stay mentally healthy.