Dr. Yelin, the Edward A Dickson Emeritus Professor of Medicine and Health Policy at UCSF, is the Principal Investigator of the California Labor Laboratory. Dr. Yelin has been researching the interaction between work and health for more than four decades, focusing on how changes in the nature of employment and in the mix of industries have affected the welfare of the working age population. Dr. Yelin has also been researching the effect of poverty on health, focusing on how de-industrialization has simultaneously rendered large numbers of workers poor and exposed them to industrial toxins where they live and work and to the stress of food, housing, and medical care insecurity.