Dr. Cacilda Jethá is a practicing psychiatrist specializing in psychosexual disorders and couples therapy. Born into an Indian family in Mozambique, she fled civil war to Portugal as a child. After studying medicine in Lisbon, she returned to Mozambique in the 1980s, where she was the sole physician in a vast rural district. She conducted research for the World Health Organization on the sexual behavior of rural Africans to develop more effective AIDS-prevention efforts. Jethá co-authored the New York Times bestseller Sex at Dawn: The Prehistoric Origins of Modern Sexuality with her husband, Christopher Ryan. The book challenges conventional beliefs about human sexuality, proposing that early human societies were non-monogamous and egalitarian. Dr. Jethá resides in Barcelona, Spain.
In 'Sex at Dawn', Christopher Ryan challenges conventional beliefs about human sexuality by delving into the evolution of our ancestors and questioning the societal norms surrounding monogamy. Through a mixture of anthropology, psychology, and sociology, Ryan argues that humans may have evolved as a more promiscuous species, making a case for non-monogamous relationships. By examining prehistoric and contemporary cultures, he challenges readers to rethink traditional views on sex, love, and commitment. With a mix of humor and compelling research, 'Sex at Dawn' provokes thought and discussion on the complexities of human relationships and desires.