Does postpartum depression go away by itself?

http://www.empowher.com/media/video/video-does-postpartum-depression-ppd-go-away-itself-dr-bennett
Listen to Dr. Shoshana Bennett (Dr. Shosh) answer the question, “Does Postpartum Depression / PPD Go Away By Itself?” Dr. Bennett is a licensed psychologist who founded Postpartum Assistance for Mothers in 1987 after her second undiagnosed postpartum illness. Dr. Bennett is the Immediate Past President of Postpartum Support International and a past president of California’s state organization Postpartum Health Alliance.
This is part of a series of videos. If you click on the link it also links you to the rest of the series where talks further about PPD. Great answers!