Finger Length & Sexual Orientation: What the Data Shows | Dr. Marc Breedlove & Dr. Andrew Huberman

Oct 23, 2026 | Dr. Marc Breedlove and Dr. Andrew Huberman discuss the 2D:4D finger length ratio, what the street fair study found in lesbians versus straight women, and why it cannot predict any one person's orientation. Dr. Marc Breedlove is a professor of neuroscience at Michigan State University and an expert on how hormones shape brain development and sexual orientation. Dr. Andrew Huberman is a tenured professor of neurobiology and ophthalmology at Stanford University School of Medicine and host of the Huberman Lab podcast.