Join Dr. Walter Bortz for Dare to be 100, a four-week seminar series on health, life and aging well. Participants will learn about the science behind aging and practical ways to maintain great health over a long life. Walter Bortz, M.D., a Clinical Professor of Medicine at Stanford University School of Medicine and Portola Valley local, is recognized as one of America’s most distinguished scientific experts on aging and longevity. Please register by calling the library or emailing. This program is sponsored by the Friends of the Portola Valley Library.