What Every Woman Needs to Know About Testosterone & Hormone Health | Susan Davis | EP #379

Video Description

👇 Visit The Proof website for the full show notes and supporting studies. 👇 https://theproof.com/podcast/ In today’s episode, I’m joined by Professor Susan Davis, an endocrinologist and one of the world’s leading experts on hormones in women’s health. With decades of clinical and research experience, Susan has been at the forefront of studying testosterone in postmenopausal women, challenging long-held assumptions and driving new conversations in medicine. We take a deep dive into the myths and evidence surrounding testosterone therapy, from its role in sexual function to its effects on heart health, mood, and ageing. Susan shares the findings of landmark clinical trials, unpacks why measurement techniques matter, and explains how misinformation online has distorted the science. What We Cover - Why testosterone is not just a “male hormone” - How levels change throughout a woman’s life - Common myths around therapy and what the evidence actually shows - Links between testosterone, libido, mood, and wellbeing - The safety profile of female-appropriate doses and potential side effects - Compounded hormones versus pharmaceutical formulations - Why testosterone therapy is currently only approved for certain uses - The biggest gaps in research and why women’s participation in trials is crucial - How online misinformation is shaping public perception of hormone therapy This conversation cuts through confusion with clear, evidence-based insights. If you want to understand what the science really says about testosterone in women, and what questions remain unanswered, this episode is essential listening. 00:00 Intro 05:42 Which Testosterone Claims Are True And Which Are False? 12:09 What Does Testosterone Do In A Woman’s Body? 16:32 How Do Testosterone Levels Change Across A Woman’s Life? 21:44 How Can Women Measure Testosterone Accurately? 28:52 What Is The Relationship Between Testosterone And Low Libido? 37:13 What Are The Outcomes And Dosing Of Testosterone Therapy 42:11 Which Delivery Methods Work Best For Testosterone Therapy? 46:35 Does Testosterone Improve Muscle Mass Or Mood? 51:29 What Are The Safety Considerations For Testosterone Therapy? 56:16 Compounded Versus Pharmaceutical Testosterone Therapy 01:02:24 Research Gaps In Testosterone And How Women Can Help Subscribe and stay connected: Found this episode valuable? Subscribe to The Proof on YouTube and hit the notification bell to stay updated. Listening on Spotify or Apple Podcasts? Follow the show to ensure you never miss an episode. Support the show: The best way to support the show is to use the products and services offered by our sponsors. Visit http://theproof.com/friends for exclusive discounts. If you have any additional questions you would like answered in the future, let me know in the comments. Enjoy, friends. Simon This episode is brought to you by: 38TERA Consider 38TERA's DMN prebiotic supplement a daily multivitamin for your gut. Formulated by yours truly and gastroenterologist Dr Will Bulsiewicz. Head to https://38tera.com/?ref=SIMON and use code THEPROOF for a discount at checkout. Function Health Take charge of your health with advanced blood testing and personalised insights. Function Health provides a practical solution to track key health markers such as cholesterol, blood sugar, and more. For the first 1,000 listeners, new members get a $100 credit when signing up. Head to https://www.functionhealth.com/simonhill to claim your credit. Only available to those living in the United States. Eight Sleep Upgrade your sleep with the Pod 5 Ultra by Eight Sleep. Clinically validated to deliver up to 1 extra hour of quality sleep per night through temperature control and biometric tracking. Use code THEPROOF for $350 off at http://eightsleep.com/theproof. Try it risk-free for 30 days, with worldwide shipping. Pique Tea Pique's Nandaka provides sustainable, all-day energy and makes you feel like you’re doing something good for your body! Try Pique and get 20% off plus a FREE starter kit when you shop exclusively at https://piquelife.com/simon WHOOP Whoop, the most advanced fitness and health wearable available. Your personalised fitness and health coach to recover faster, sleep better, and train smarter. Claim your first month free on http://join.whoop.com/simon. Simon Hill, MSc, BSc (Hons) - Creator of http://theproof.com/ - Host of https://theproof.com/podcast/ - Author of https://theproof.com/book/ Subscribe & Connect: - YouTube: https://www.youtube.com/c/TheProofWithSimonHill?sub_confirmation=1 - Apple Podcasts: https://podcasts.apple.com/au/podcast/the-proof-with-simon-hill/id1367773989 - Spotify: https://open.spotify.com/show/7bAIJCVgnquxXZuQCdZyTi?si=84831dc34dc9408b - Instagram: https://www.instagram.com/theproof/ - X: https://x.com/theproof - Facebook: https://facebook.com/theproofwithsimonhill - Nourish your gut with my https://theproof.com/ferments/ and download my https://theproof.com/mealplan