Sara Gottfried, MD, is a Harvard-educated physician and board-certified gynecologist who treats the root cause of problems and teaches women how to balance their hormones naturally. She has been featured on 20/20 and The Ricki Lake Show, as well as in the award-winning film Yogawoman and such publications as Redbook, Cosmopolitan, Glamour, Women's World, Natural Health Magazine, and many more. Tanya Eby is a narrator and novelist who has narrated more than fifty New York Times and USA Today bestsellers, earning two AudioFile Earphones Awards. She has a BA in English language and literature from Grand Valley State University and an MFA in creative writing from the University of Southern Maine. She lives in Grand Rapids, Michigan, with her children.