Verified by Psychology Today
Judith Eve Lipton, M.D. is a psychiatrist and book author. She and her husband David Barash have written about sex, war, and human nature.
David P. Barash, Ph.D., is an evolutionary biologist and a professor of psychology at the University of Washington.
Dr. Lipton retired from the practice of psychiatry in 2009 after 30 years in order to move to Costa Rica to explore its culture and people. She is writing a book about the phenomenon of happiness in Costa Rica, noted to be the happiest country in the world on 3 different international surveys.