Seth M. Holmes, MD, PhD, is Martin Sisters Endowed Chair Assistant Professor of Public Health and Medical Anthropology at the University of California, Berkeley. A cultural anthropologist and physician, Dr. Holmes is interested broadly in social hierarchies, the social production of health and illness, and the ways in which perceptions of ethnoracial difference naturalize and normalize these inequalities. Dr. Holmes is author of the new book, Fresh Fruit, Broken Bodies: Migrant Farmworkers in the United States (2013).