Recognizing how persistent depressive disorder manifests and plays out in the lives of individuals is the first step in getting help.

Double depression combines long-term dysthymia with major depressive episodes, causing persistent sadness, fatigue, and ...

This article reviews the symptoms, diagnosis, risk factors, and treatment of Parkinson's disease dementia. It also helps distinguish PDD from dementia with Lewy bodies (DLB), a condition with ...