Although much more awareness is given to postpartum depression, Dawn Kingston's research shows that just as many, if not more women struggle with their mental health during pregnancy. One in four women will deal with mental health problems in the prenatal period, but these issues are still widely misunderstood. Her new book, "Your Brain on Pregnancy" offers more information, screening questions, and treatment options to help guide expecting parents who may be struggling with depression, anxiety, or toxic stress.