
Persistent Depressive Disorder (Dysthymia)
What Is Persistent Depressive Disorder? Persistent Depressive Disorder (PDD), also known as dysthymia, is a chronic form of depression characterized by a consistently low mood that lasts for two years or longer in adults (and at least one year in children and adolescents). While symptoms may be less intense than those of major depressive disorder, their long duration can significantly affect daily life, relationships, and overall well-being. At Park Psychological Services in New York, we understand that living with long-term