Episode
How Hormones Shape Sexual Orientation & Behavior | Dr. Marc Breedlove
Huberman Lab · Mar 30, 2026 · 2 h 12 min
Dr. Marc Breedlove, PhD, is a professor of neuroscience at Michigan State University and an expert on how hormones shape brain development and sexual orientation. We discuss how prenatal testosterone impacts whether someone is romantically attracted to men or women later in life, and what correlates of sexual orientation — such as finger-length ratios — tell us about the role of hormones in…