Persistent Depressive Disorder (PDD) or dysthymia is a type of depression that is chronic, lasting at least two years. As compared to major depressive disorder, which is usually accompanied by intense cases of depression, PDD manifests as a daily low mood that may extend to relationships and general well-being. Individuals with PDD state that they are usually sad most of the time even when things are going fine. It is not necessarily as severe as major depression, but because