Rebecca Zack Callahan, MSN, WHNP-BC, is a passionate women's healthcare nurse practitioner (NP). She is a graduate of Princeton University, New York University, and the University of Pennsylvania. She has worked at institutions such as New York Presbyterian Hospital, The Children's Aid Society, and both private and public OB/GYN offices. She currently serves as an adviser and NP for Maven—the first digital clinic for women. Rebecca also sits on the NYU Meyers College of Nursing Board of Advisors. She is an 800+ hour certified Jivamukti and pre/postnatal yoga teacher and proud mother of three.