Much of modern psychiatry is about using medications to try to normalize brain chemistry as a tool to help resolve mood disorders. Having been involved in considerable research on how hormonal shifts can cause changes in brain chemistry–I am always interested in trying to help my patients understand what may occur and what they may be able to do to take preventive actions. Here is a study that suggests that using a dietary supplement containing tryptophan (2 grams) and tyrosine (10 grams) may prevent postpartum blues without changing breast milk contents. Better still, this might interrupt the spiral to postpartum depression! Check out this link and then talk with your doctor before starting any program.