Natalia Mehlman Petrzela is Assistant Professor of History at The New School in New York City. She is the author of Classroom Wars: Language, Sex, and the Making of Modern Political Culture (Oxford, 2015), and her writing has appeared in The New York Times, Slate, and The Huffington Post. Her latest research focuses on the emergence of wellness culture in the United States since 1950. She tweets from @nataliapetrzela.