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The Interviews

Dr. Simon LeVay

Simon LeVay is a British-born neuroscientist who has served on the faculties of Harvard Medical School and the Salk Institute for Biological Studies. He has written ten previous books, including the textbook Human Sexuality, the New York Times best-seller, When Science Goes Wrong, and Gay, Straight, and the Reason Why: The Science of Sexual Orientation. He made international headlines with his 1991 study showing that… More →

Dr. Ray Blanchard

Ray Blanchard is a researcher at the University of Toronto’s School of Psychiatry. He is known for conducting studies that proved the more older brothers a boy has, the more likely he will be gay. Blanchard received his Ph.D. from the University of Illinois in 1973.… More →

Dr. Milton Diamond

Dr. Milton Diamond is an expert on human sexuality and a researcher with the University of Hawaii. He is the Director of the Pacific Center for Sex and Society. He is widely known for the John/Joan case, where he followed up on David Reimer, a boy raised as a girl after he lost his penis in a failed circumcision. He tracked down the adult Reimer… More →

Dr. Marc Breedlove

Dr. Marc Breedlove is the Rosenberg Professor of Neuroscience at Michigan State University in East Lansing, MI. He is recognized as one of the world’s leading experts on human sexuality. He received his B.A. in psychology from Yale University in 1976 and his Ph.D. in physiological psychology from UCLA in 1982.… More →

Dr. Lisa Diamond

Dr. Lisa Diamond is a Professor of Psychology and Gender Studies at University of Utah. She is an expert on human sexuality. In 2008, she published a groundbreaking study, Sexual Fluidity: Understanding Women’s Love and Desire. Diamond received her Ph.D., in 1999 from Cornell University.… More →

Dr. Ken Zucker

Ken Zucker is the lead psychologist at Toronto’s Centre for Addiction and Mental Health. He received his Ph.D. from University of Toronto in 1982.… More →

Dr. J. Michael Bailey

J. Michael Bailey is a Professor in the Department of Psychology at Northwestern University in Evanston. He is a behavioral geneticist known for conducting key twin studies that show a genetic basis for sexual orientation.… More →

Dr. Erick Janssen

Erick Janssen is Senior Scientist & Director of Education & Research Training at The Kinsey Institute, which is based at Indiana University in Bloomington. Dr. Janssen’s research interests include the determinants of sexual desire and arousal, the effects of emotions on sexual response and behavior, and sexuality and relationships.  In 2011, he conducted a major study, “Patterns of sexual arousal in homosexual, bisexual, and heterosexual… More →

Dr. Eric Vilain

Dr. Eric Vilain, M.D. is a Professor of Human Genetics, Pediatrics and Urology at UCLA, and the Director of the Institute for Society and Genetics. He is also Chief of Medical Genetics, and an attending physician in the Department of Pediatrics. His laboratory explores the genetics of sexual development and sex differences, focusing on the molecular mechanisms of gonad development, as well as on the… More →

Dr. Dennis McFadden

Dr. Dennis McFadden was a faculty member at University of Texas at Austin’s Department of Psychology from 1967 until his retirement as Professor Emeritus in early 2011. He has published over 100 research papers and two books on various topics on hearing. His groundbreaking research discovered subtle variations in the inner ears of lesbians and bisexual women, demonstrating that they may have been masculinized by… More →

Dr. Dean Hamer

Dr. Dean Hamer was an independent researcher at the National Institutes of Health for 35 years, where he directed the Gene Structure and Regulation Section at the U.S. National Cancer Institute. In 1993, he published a landmark paper showing that the Xq28 marker on the X chromosome was linked to homosexuality. Dr. Hamer received his Ph.D. from Harvard Medical School.… More →

Dr. Charles Roselli

Dr. Charles Roselli is a scientist at Oregon Health & Science University in the Department of Physiology and Pharmacology. He is known for his groundbreaking research showing a homosexual orientation in rams. Roselli received his Ph.D. from Hahnemann University in 1981.… More →

Dr. Carolyn Wolf-Gould

Dr. Carolyn Wolf-Gould, MD is a family doctor practicing in Oneonta, NY. One of her specialties is working with transgender individuals. Dr. Wolf-Gould graduated from Yale University School of Medicine.… More →

Allen Rosenthal

Allen Rosenthal is a senior researcher at Northwestern University in Evanston. He led a major 2011 study on bisexuality.… More →

Dr. Alice Dreger

Dr. Alice Dreger is a professor of clinical medical humanities and bioethics at Northwestern University’s Feinberg School of Medicine. She is a historian and author who has written for The New York Times, The Wall Street Journal, and The Washington Post. A fellowship recipient of the John Simon Guggenheim Memorial Foundation, Dreger is internationally recognized as an expert on sex anomalies, conjoined twinning, and contemporary… More →

Dr. Alan Sanders

Dr. Alan Sanders is a Clinical Associate Professor of Psychiatry at Northwestern University at Evanston. He is conducting a large-scale study with gay brothers. His research confirms an earlier finding by Dr. Dean Hamer, which linked the Xq28 genetic marker for homosexuality to the X chromosome.… More →