In this July 30, 2013, photo, 92-year-old Edith Stern, right, has lunch in the cafeteria at her retirement home in Chicago. Stern is a  super ager,Â
In this July 30, 2013, photo, 92-year-old Edith Stern, right, has lunch in the cafeteria at her retirement home in Chicago. Stern is a  super ager, participating in a Northwestern University study of people in their 80s and 90s with astounding memories. So far the research has found scientific evidence that brains in this elite group resemble those of people decades younger. (AP Photo/M. Spencer Green)