Christopher Ryan is the author Sex at Dawn: The Prehistoric Origins of Modern Sexuality, which he coauthored with Cacilda Jethá. Dan Savage called Sex at Dawn “the single most important book about human sexuality since Alfred Kinsey unleashed Sexual Behavior in the Human Male on the American public in 1948.” This book examines the origins of human sexuality and their influence over our sexual behavior. Ryan will offer insight on why monogamy is tough for so many couples (historically people lived in “communal” groups which shared child raising and often sexual partners). Other topics include why sexual passion fades, why sexual frustration can actually make us sick, and much more.received a BA in English and American literature in 1984 and an MA and Ph.D. in psychology from Saybrook University, in San Francisco, CA twenty years later. His doctoral dissertation analyzes the prehistoric roots of human sexuality.
Based in Barcelona since the mid-1990s, Christopher has lectured at the University of Barcelona Medical School and consulted at various local hospitals. He speaks about human sexuality to audiences around the world (in both English and Spanish). His work has appeared in major newspapers and magazines in many languages, scholarly journals, and a text book used in medical schools and teaching hospitals throughout Spain and Latin America.