It is normal for people to demonstrate a range of moods within a given day, therefore, if someone is continuously in a sad or excited state for an extended period of time without apparent cause, he may be diagnosed with a mood disorder.  Unipolar depression and bipolar disorder are two conditions that are classified as mood disorders. Unipolar depression refers to both major depressive disorder and dysthymic disorder, and bipolar disorder is categorized as bipolar I, bipolar II, and cyclothymic disorder.  Those suffering from mood disorders struggle with their interpersonal relationships because they have difficulty responding to certain situations in a health manner. Similarly, they may also have trouble concentrating or completing daily tasks. Mood disorders can cause the individual and those around him great distress and can ultimately disrupt a person’s daily functioning, personal relationships, and career success.  The good news is that there are many effective treatment options available today. To learn more about the symptoms, etiology, and treatment of these disorders, please see the Unipolar Depression and Bipolar Disorder sections of the site.

This site is intended to provide basic information for students and anyone interested in learning more about mood disorders; if you suspect that you are suffering from a mood disorder, consult a health care professional.