Randi Hutter Epstein, MD, MPH, is a medical journalist whose articles have appeared in the New York Times, Washington Post, and Psychology Today among other national publications. She is also a lecturer in the English Department at Yale University, Writer in Residence at Yale Medical School, and an adjunct professor at Columbia University Graduate School of Journalism. Her most recent book is AROUSED: The History of Hormones and How They Control Just About Everything.@randihepstein