Peter Sterling is Professor of Neuroscience in the University of Pennsylvania School of Medicine. In his forty years there, he has studied brain architecture and function in the laboratory and taught neurobiology to medical and graduate students. His lifelong social activism impelled him to investigate how capitalist social organization affects brain function and thus health—leading to a new model of physiological regulation, termed “allostasis.” He is the co-author, along with Simon Laughlin, of Principles of Neural Design (2015).