Christopher Ryan (author)

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Christopher Ryan
Born (1962-02-13) February 13, 1962 (age 62)
EducationSaybrook University (BA, MA, PhD)
SpouseCacilda Jethá

Christopher Ryan (born February 13, 1962) is an American author best known for co-authoring the book Sex at Dawn (2010).


He received a B.A. in English and American literature in 1984, and an M.A. and Ph.D. in psychology from Saybrook University, an accredited hybrid low-residency/online learning program based in San Francisco, twenty years later.[1] His master's thesis examined differences in specific personality measures between working fashion models and the general public. His doctoral dissertation analyzed the prehistoric roots of human sexuality, and was guided by the psychologist Stanley Krippner,[2] a humanistic psychologist, with additional committee members Sabrina Zirkel and Jürgen W. Kremer.[3]

Ryan gave a TED talk[4] titled Are we designed to be sexual omnivores? in February 2013, contributes to Psychology Today[5] and hosts a popular podcast called Tangentially Speaking with Dr. Christopher Ryan.[6]

In 2018-2019, Ryan published Civilized to Death: What Was Lost on the Way to Modernity, also known as, Civilized to Death: The Price of Progress (ISBN 1451659105),[7][8] as well as the ebooks: Tangentially Reading (ASIN B07C91LTZ2) and Tangentially Talking Drugs (ASIN B07Y6TWJ7Z) based on his popular podcast, Tangentially Speaking.

He is married to his sometime collaborator and co-author of Sex at Dawn, Cacilda Jethá.[9]


  1. ^ Seidman, Barry F.; Dowret, Arnell (2011-02-27). "Speaking of Sex". The Humanist. No. March–April 2011. Retrieved 2017-08-29.
  2. ^ "The Authors / FAQ". Archived from the original on 2012-05-20. Retrieved 2012-06-07.
  3. ^ Ryan, Christopher Patrick (2003). Human sexual behavior in the Pleistocene: A challenge to the standard model of human evolution (PhD in Psychology thesis). Saybrook University. ProQuest 305260310.
  4. ^ Ryan, Christopher (February 2013), Are we designed to be sexual omnivores?, TED2013: TED Talks, retrieved 2017-08-29{{citation}}: CS1 maint: location (link)
  5. ^ "Sex at Dawn". Psychology Today. Retrieved 2017-08-29.
  6. ^ "Tangentially Speaking". Retrieved 2014-07-21.
  7. ^ Dore, Jimmy (2019-11-23). "How We Are Being 'Civilized To Death' w_Christopher Ryan". The Jimmy Dore Show. Retrieved 2019-11-24.
  8. ^ Ryan, Christoher. "Civilized To Death, Why Everything's Amazing, But Nobody's Happy". Psychology Today. Christoher Ryan. Retrieved 2019-11-24.
  9. ^ Ryan, Christopher (2012-07-27). "For the Record". Psychology Today. Retrieved 30 July 2012.

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