How Depression & Anxiety are Related

Both depression and anxiety are responses to loss, real or imagined. The depressed person is preoccupied with what was and the anxious person is preoccupied with what could be. 

Depression and anxiety describe dynamic states of mind and these conditions frequently interact with each other and overlap. To think of a future and constantly worry about what could go wrong is to live with anxiety. But when the potential threat of future loss is replaced by the inevitability of loss, anxiety becomes depression. When the mind goes back and forth between these two states, anxiety and depression brush up against one another, doubly tormenting the psyche.