Alexandra Sacks, MD, is a reproductive psychiatrist affiliated with the Women’s Program at the Columbia University Medical Center and a candidate at the Columbia University Psychoanalytic Center for Training and Research. A leading expert in “matrescence,” she is known for popularizing the concept in her TED talk with more than one million views worldwide, and in her New York Times article “The Birth of a Mother,” the number-one most read piece of 2017 for the “Well Family” section, where she is a regular contributor. Dr. Sacks was a scholar at the DeWitt Wallace Institute for the History of Psychiatry and serves on the American Psychoanalytic Association advisory board for media education. Her work on matrescence and “mommy brain” has been featured in TIME magazine, The Washington Post, The Boston Globe, and on NPR. Dr. Sacks hosts a motherhood podcast from Gimlet Media and is the author, with Catherine Birndorf, of What No One Tells You. Learn more at AlexandraSacksMD.com and @AlexandraSacksMD.