Dr. Diller was a professional dancer before she became a professional model, represented by Wilhelmina, appearing in Glamour, Seventeen, national print ads, and TV commercials. After completing her Ph.D. in clinical psychology, she went on to do postdoctoral training in psychoanalysis at NYU. She has written articles on beauty, aging, eating disorders, models, and dancers, and served as a consultant to a major cosmetic company interested in promoting age-related beauty products. Her book, "Face it: What Women Really Feel As Their Looks Change" (2010), written with Jill Muir-Sukenick, Ph.D. and edited by Michele Willens, is a psychological guide to help women deal with the emotions brought on by their changing appearances. "Today" co-host Hoda Kotb called it "a smart book for smart women." For more information, please visit www.VivianDiller.com. Follow Vivian Diller, Ph.D. on Twitter: