Depression is kind of mental disease .It is a mood disorder.
In 19 th century Emil karepelin who was a German psychiatrist began referring different forms of melancholia as Depressive states. Its scientific name is Dysthymia.
In developing countries like Pakistan,India etc. people often less talk about and due to lack of awareness they even did consider it a disease .It is slow poison that if not treated timely may lead to destruction of mental health and even suicide.
