A substance use disorder (SUD) may look like one person’s problem, but it affects the entire family. It can cause arguments, money problems, and emotional stress at home. When someone misuses drugs or alcohol, everyone who cares about them feels the impact. Families play an important role in recovery, especially when they understand how substance use influences relationships and how they can provide support. This course will explore the impact of SUD on families, explain how families function as a system, and show how family support can make recovery easier and more sustainable.