Greg Critser is a writer about medicine, science, food and health. His work has appeared in periodicals ranging from the New York Times to the New Yorker. He is the author of the best seller Fat Land: How Americans Became the Fattest People in the World (Houghton Mifflin 2003), and the award-winning Generation Rx: How Prescription Drugs are Altering American Minds, Lives and Bodies (Houghton 2005). His more recent books include Eternity Soup: Inside the Quest to End Aging (Random House 2010) and City Of Genius (Random House 2014).