Read this Psychology Today blog, delivered with a great mix of information, experience, and perspective with the distinctive voice of Paul D. Blanc, MD, MSPH, FCCP, member of the ACCP Occupational and Environmental Health NetWork. Dr Blanc is Professor of Medicine and Endowed Chair in Occupational and Environmental Medicine at the University of California, San Francisco, where he has been a faculty member since 1988. He currently serves as Chief, Division of Occupational and Environmental Medicine. Board certified in internal medicine, occupational medicine, and medical toxicology, Dr Blanc also serves as Associate Medical Director, California Poison Control System, San Francisco Division. Dr Blanc 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, published by the University of California Press.