This book features 12 engaging biographies of men and women in medical sciences from a neurobiologist and an epidemiologist, to a nutritionist, a medical illustrator, and more. These remarkable scientists share their stories and provide personal photographs. They describe what they do, how they got into it, and why they enjoy it. Next to each biography there are interesting and fun activities related to each career. This innovative book, written by top-notch science writer Catherine Ivey Lee, conveys the excitement of medical sciences and the wide variety of careers available. It also inspires young readers to think about what they like to do and possible careers in medical sciences.