Helen E. Fisher, Ph.D. biological anthropologist, is a Senior Research Fellow at The Kinsey Institute at Indiana University, and a Member of the Center For Human Evolutionary Studies in the Department of Anthropology at Rutgers University. She has written six books on the evolution, biology, and psychology of human sexuality, monogamy, adultery and divorce, gender differences in the brain, the neural chemistry of romantic love and attachment, human biologically-based personality styles, why we fall in love with one person rather than another, hooking up, friends with benefits, living together and other current trends, and the future of relationships — what she calls: slow love.