Learn About The Different Types Of Depression

Persistent Depressive Disorder

People who have a persistent depressive disorder (PDD) usually show an unhappy, dark, or sad mood majority of the time and days. They mostly have two added symptoms of depression that has been there for 2 years. In youngsters, PDD aka dysthymia, the symptoms include irritability or other signs of depression that has occurred for a year or two. “It may wax and wane in intensity, but generally it’s a low level of depression,” Dr. Noble claims.