Kristen Pogebra-Brown (IMAGE) University of Arizona Health Sciences Caption Kristen Pogreba-Brown, PhD, MPH, is an associate professor of public health and a member of the BIO5 Institute. Credit UArizona Health Sciences Usage Restrictions Credit UArizona Health Sciences License Original content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.