9780553378481. New condition. Trade paperback. Language: English. Pages: 288. Trade paperback (US). Glued binding. 288 p. Contains: Illustrations. Based on Dr. Nelson's original research published in the "Journal of the American Medical Association", this national bestseller shows women how they can replace fat with muscle, reverse bone loss, increase strength and energy, and improve balance and flexibility--all without sweat, special clothes, or even getting down on the floor! Illustrated instructions.