Paul D. Blanc, M.D., M.S.P.H., is Professor of Medicine and Endowed Chair in Occupational and Environmental Medicine at the University of California San Francisco, where he has been on faculty since 1988. He currently serves as Chief of the Division of Occupational and Environmental Medicine. Board certified in internal medicine, occupational medicine, and medical toxicology. He also serves as an Assitant Medical Director, California Poison Control System, San Francisco Division. He received his BA from Goddard College (Plainfield, Vermont), where he first became interested in health and the environment. He trained at the Harvard School of Public Health and the Albert Einstein School of Medicine. In the 2013-4 academic year, he was a Fellow at the Center for Advanced Study in the Behavioral Sciences at Stanford University. He has authored numerous scholarly publications on the subject of toxic exposures and illness and is author of How Everyday Products Make People Sick: Toxins at Home and in the Workplace (University of California Press), which was released in an updated and expanded edition in 2009. His new book, Fake Silk: The Lethal History of Viscose Rayon, will be published by Yale University Press in Novermber, 2016 (http://yalebooks.com/book/9780300204667/fake-silk).