Rethinking Hormones: Testosterone and Estrogen in Women’s Heart Health

madman

Super Moderator
2025 American Heart Association Scientific Sessions


Dr. Susan Davis

* in the process of doing safety parameters, we found that when we gave women testosterone, we caused blood vessel dilation just like we saw when we gave women estrogen and in fact, when we gave women an ACUTE dose of testosterone, we found it dropped blood pressure even with women lying supine in bed. So ACUTELY testosterone is a vasodilator and CHRONICALLY it's a vasodilator






Emerging research is challenging long-held assumptions about the roles of estrogen and testosterone in women’s health—particularly in the context of aging and cardiometabolic risk. Hear from Dr. Susan Davis as she reviews the evolving evidence. Dr. Davis is an endocrinologist as well as the head of the Women’s Health Research Program and a Professor of Women's Health at Monash University in Melbourne, Australia. She also spoke about this topic at the 2025 American Heart Association Scientific Sessions.
 

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TRT Hormone Predictor

Predict estradiol, DHT, and free testosterone levels based on total testosterone

⚠️ Medical Disclaimer

This tool provides predictions based on statistical models and should NOT replace professional medical advice. Always consult with your healthcare provider before making any changes to your TRT protocol.

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Normal range: 300-1000 ng/dL

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Understanding Your Hormones

Estradiol (E2)

A form of estrogen produced from testosterone. Important for bone health, mood, and libido. Too high can cause side effects; too low can affect well-being.

DHT

Dihydrotestosterone is a potent androgen derived from testosterone. Affects hair growth, prostate health, and masculinization effects.

Free Testosterone

The biologically active form of testosterone not bound to proteins. Directly available for cellular uptake and biological effects.

Scientific Reference

Lakshman KM, Kaplan B, Travison TG, Basaria S, Knapp PE, Singh AB, LaValley MP, Mazer NA, Bhasin S. The effects of injected testosterone dose and age on the conversion of testosterone to estradiol and dihydrotestosterone in young and older men. J Clin Endocrinol Metab. 2010 Aug;95(8):3955-64.

DOI: 10.1210/jc.2010-0102 | PMID: 20534765 | PMCID: PMC2913038

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