Mood disorders are a classification of mental health conditions defined by significant changes in mood. Mood disorders include major depressive disorder, bipolar disorder and persistent depressive disorder. There are often links between mood disorders and other psychiatric disorders, as well as the development of substance abuse.

Mood Disorder FAQs

Around 20 percent of people in the United States report having at least one depressive symptom in any given month. Despite how often symptoms of mood disorders are experienced, they are still fairly misunderstood. Find answers to commonly asked questions about mood disorders below.