The HRT story your doctor learned wrong.

Good morning.

This is the first Sunday letter, so I want to start with the piece of research that made me build this magazine in the first place.

In July 2002, the Women's Health Initiative published a study that scared a generation of doctors out of prescribing hormone replacement therapy. The headlines said HRT raised breast cancer risk by 26%. Within 18 months, prescriptions dropped 80%. An estimated 18,601 women died of hip fractures between 2002 and 2011 who would not have died if they'd stayed on HRT — that's the Manson et al. 2017 follow-up speaking, not me.

Here's what almost nobody mentions: the average woman in that 2002 WHI study was 63 years old. The average woman starting HRT in real clinical practice was — and is — 52 years old.

Eleven years matters. A lot.

The 2023 re-analysis (Hodis & Mack, Climacteric) ran the WHI data sliced by age at initiation. Women who started HRT within 10 years of their final period showed:

• 31% lower all-cause mortality
• 52% lower coronary heart disease
• 50% lower Alzheimer's risk
• A breast cancer signal that was barely statistically significant — and went away entirely when you adjusted for the synthetic progestin (medroxyprogesterone) that's almost never prescribed anymore

The "HRT causes cancer" story your mom and her doctor lived through was based on the wrong drug, given to the wrong age group, then generalized to everyone.

This is what I mean when I say I built this magazine because the actual research never makes it past the cover model.

What I want you to take from this first letter, if nothing else:

The window matters. The most generous reading of the modern data says women who start bioidentical estrogen + micronized progesterone within 10 years of their final period get the biggest benefit and the smallest risk. After that 10-year window, the risk-benefit calculus shifts. If you're 45-58 and perimenopausal, you're in the window. Now is when this conversation happens.

Your doctor may not have updated. Most OB/GYNs trained pre-2017. The CME hours required to stay current on HRT are voluntary. If your doctor says "you're too young for HRT" or "we only prescribe it for severe hot flashes" — those are 2008 talking points, not 2024 ones.

What to ask: "Have you read the Hodis-Mack 2023 re-analysis? Based on my age and time since final period, where do I fall in the window?"

That's it. If your doctor knows the paper, you have a real conversation. If they don't, you have a referral question.

I built a 12-question conversation checklist that goes deeper than that. Print it, bring it. Free.

Next week: cortisol-belly. The 2021 Pontzer metabolism paper that broke the "your metabolism crashes at 40" myth, and what's actually happening with visceral fat redistribution that everyone calls "the meno-pot."

If this was useful, forward it to one person. If you have a question, hit reply — I read every response.

Alexander After Forty Feel Reader-funded. Research-led. No supplement-brand sponsorships.

P.S. — One paid disclosure: the conversation checklist link above goes to a page on this site with no affiliate links. The HRT cover story it lives next to includes one ClickBank link to a supplement called Citruburn. I trust that vendor and use the product myself; the commission funds the site. Two readers asked last week if I take money from supplement companies. The answer is: I take affiliate commissions from products I personally use and that pass our research bar. I don't take sponsorships. That's the only line I draw.