AZ Illustrated Science introduces a woman taking charge of her health at an unexpected juncture in her life. Next, the percentage of marathon runners who are women has increased from 11 percent in 1980 to 42 percent in 2012, and marathon runners are getting older. A representative from Southern Arizona Roadrunners describes the changes in the demographics of local races. Next, a University of Arizona anthropologist discusses how people are handling the increasing pressure to be healthy. And, an assistant professor of medicine in the University of Arizona Cancer Center describes the role of exercise in recovering strength and health after surviving cancer.