Catherine Birndorf, MD, is a reproductive psychiatrist and clinical associate professor of psychiatry at New York-Presbyterian/Weill Cornell Medical Center, where she founded the Payne Whitney Women’s Program. She is currently the co-founder and medical director of The Motherhood Center, a treatment center in New York City for pregnant and new moms experiencing anxiety and depression. Dr. Birndorf is a board member of Postpartum Support International, a nonprofit organization for awareness, prevention, and treatment of maternal mental health worldwide. For ten years, Dr. Birndorf was a regular mental health columnist for Self magazine and has appeared on numerous television programs including the TODAY show, Good Morning America, CBS Evening News, and CNN. She is the author, with Alexandra Sacks, of What No One Tells You and of the New York Times bestseller The Nine Rooms of Happiness, co-authored with Lucy Danziger. Learn more at DrCatherineBirndorf.com and TheMotherhoodCenter.com.