Dysthymia, also known as Persistent Depressive Disorder, is a chronic form of depression characterized by a low mood lasting for at least two years. Individuals with dysthymia may experience feelings of sadness, hopelessness, and a lack of interest in daily activities, which can significantly impact their quality of life. Unlike major depressive disorder, the symptoms of dysthymia are less severe but more enduring. People with this condition often find it challenging to maintain relationships and perform at work or school. Early intervention and treatment, including therapy and medication, can help manage symptoms effectively.