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
Disclaimer & Disclosures
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Popis podcastu
The Huberman Lab podcast is hosted by Andrew Huberman, Ph.D., a neuroscientist and tenured professor in the department of neurobiology, and by courtesy, psychiatry and behavioral sciences at Stanford School of Medicine. The podcast discusses neuroscience and science-based tools, including how our brain and its connections with the organs of our body control our perceptions, our behaviors, and our health, as well as existing and emerging tools for measuring and changing how our nervous system works.
Huberman has made numerous significant contributions to the fields of brain development, brain function, and neural plasticity, which is the ability of our nervous system to rewire and learn new behaviors, skills, and cognitive functioning. He is a McKnight Foundation and Pew Foundation Fellow and was awarded the Cogan Award, given to the scientist making the most significant discoveries in the study of vision, in 2017.
Work from the Huberman Laboratory at Stanford School of Medicine has been published in top journals, including Nature, Science, and Cell, and has been featured in TIME, BBC, Scientific American, Discover, and other top media outlets.
In 2021, Dr. Huberman launched the Huberman Lab podcast. The podcast is frequently ranked in the top 10 of all podcasts globally and is often ranked #1 in the categories of Science, Education, and Health & Fitness.