Hot flashes and hormone therapy: the science of perimenopause
Sep 17, 2026 · 18m
Summary
This episode explores the science of perimenopause, featuring endocrinologists Dr. Nanette Santoro and Dr. Genevieve Neal-Perry. They discuss the fluctuating hormonal mechanisms behind symptoms like hot flashes and brain fog, and clarify why the Women’s Health Initiative study was misinterpreted, leading to a decades-long decline in hormone therapy use. The guests address current misconceptions, warning against commercialized trends and unfounded claims regarding testosterone and "bio-identical" hormones, while emphasizing that hormone therapy is a valid option for many but not a cure-all f…
Topics discussed
Sponsors and show introduction
Perimenopause awareness and hormone therapy trends
Introducing Dr. Santoro and Dr. Neal-Perry
The reality of hormonal fluctuations during perimenopause
Listener experiences: personality changes and symptoms
Why some women experience more severe symptoms
The neuroscience behind hot flashes and KNDy neurons
Brain adaptation and the mystery of persistent hot flashes
Distinguishing perimenopause from other symptoms
Risk factors for early onset and racial differences
Sponsor break: Better in Bed with the Sleep Doctor
History of the Women's Health Initiative and its impact
Re-evaluating risks and benefits based on follow-up data
Concerns about commercialization and social media influence
Debunking myths about bioidenticals and 'fountain of youth' claims
The lack of evidence for testosterone therapy in menopause
Closing remarks and guest credits
Outro and sponsor: Columbia Hernia Center
Listen ad-free on Castria