New brain research is proving it: Women at midlife really do start to see the world differently. Some 37 million women now entering their fifties and sixties-a unique generation-are refashioning their lives, with dramatic results. They have fulfilled all the prescribed roles-daughter, wife, mother, employee, but they're not ready to retire. They want to experience more. Suzanne Braun Levine gives us a fun, smart, and tremendously informative road map through the challenging and uncharted territory that lies ahead.