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Andrew Huberman
Andrew Huberman
@hubermanlab·7.5M subscribers·495 videos

How Hormones Shape Sexual Orientation & Behavior | Dr. Marc Breedlove

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March 30, 2026

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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 brain and psychological development. We also discuss why the number of older brothers a male has biases sexual orientation. Throughout, we explain how nature and nurture interact to shape male-female differences, behavior, and romantic partner choice.

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Huberman Lab

Dr. Marc Breedlove

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#HubermanLab #Science #Hormones

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go.hubermanlab.com/iJe27oRdrinkag1.com/hubermandavidprotein.com/hubermanrorra.com/hubermanfunctionhealth.com/hubermanhubermanlab.comhubermanlab.com/newslettermarcbreedlove.comdocs.google.com/document/d/1mj4jJNGNUTtmiGkY9…marcbreedlove.com/bookspubmed.ncbi.nlm.nih.govyoutube.com/user/WhomYouLove2012youtube.com/@Dr.Breedlove/playlistshubermanlab.com/disclaimer

Guests & Subjects Covered

Dr Marc Breedlove PhDMichigan State UniversityBooks Publications TEDWhom You LoveWomen Differences Sponsors DavidStraight MenWomen MiceSexual Orientation GroupTestosterone Decline Sexual Orientation

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