The Huberman Lab Podcast discusses neuroscience: how our brain and its connections with the organs of our body control our perceptions, our behaviors, and our health. We also discuss existing and emerging tools for measuring and changing how our nervous system works. Dr. Andrew Huberman is a tenured Professor of Neurobiology and Ophthalmology at Stanford School of Medicine. His laboratory studies neural regeneration, neuroplasticity, and brain states such as stress, focus, fear, and optimal performance. For more than 20 years, Dr. Huberman has consistently published original research findings and review articles in top-level peer-reviewed journals, including Nature, Science, Cell, Neuron, and Current Biology. He is a regular member of several National Institutes of Health review panels and a Fellow of the McKnight Foundation and the Pew Charitable Trusts. Dr. Huberman regularly consults for technology development companies, professional athletic organizations, and various units of U.S. and Canadian Special Operations.
How Hormones Shape Sexual Orientation & Behavior | Dr. Marc Breedlove
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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Timestamps
(00:00:00) Marc Breedlove
(00:03:24) Hormones & Sexual Orientation
(00:07:37) Prenatal Testosterone, Finger Ratio, Men & Women Differences
(00:14:08) Sponsors: David & Rorra
(00:16:46) Finger Ratios, Prenatal Testosterone, Gay & Straight Men/Women
(00:23:57) Mice & Sex Differences, Androgens
(00:26:54) Brain Differences & Sexual Orientation
(00:33:52) Group vs Individual Differences, Height Analogy; Bisexuality
(00:36:57) Brain Development, Hormones & Behavior; Brain Plasticity
(00:42:52) Sponsor: AG1
(00:44:16) Sexual Behavior, Libido
(00:51:37) Gay Rams, Brain Differences
(00:58:00) Aversion Pathway, Men vs Women, Same-Sex Partner
(01:06:58) Congenital Adrenal Hyperplasia (CAH), Intersex Phenotypes
(01:13:55) Androgen Insensitivity Syndrome (AIS)
(01:18:14) Sponsor: Function
(01:19:25) Gay Men & Older Brothers, Maternal Immunization Hypothesis
(01:32:55) CAH Carriers, Advantage, Stress Tolerance
(01:35:41) Birds & Sexual Differentiation, Gynandromorphs
(01:41:32) Anabolic Steroids, Hypersexuality; Adult Brain Plasticity
(01:45:31) Age & Testosterone Decline; Sexual Orientation & Activities
(01:53:14) Marc's Academic Journey, Ozarks, Luck
(02:02:35) Exploration; Kids & Sex Differences
(02:08:47) Zero-Cost Support, YouTube, Spotify & Apple Follow, Reviews & Feedback, Sponsors, Protocols Book, Social Media, Neural Network Newsletter
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