Specialty Testing Guide › TruAge Biological Age Testing
Research suggests menopause is linked with faster epigenetic aging in blood. Women who reach menopause earlier, or who have both ovaries removed, tend to have older blood clock readings, and the gap grows with time since menopause.
Whether hormone therapy slows that process is a different question, and the honest answer is that we do not know yet. The evidence is observational and mixed, and hormone therapy decisions should rest on symptoms, bone health and personal risks, not on a clock score.
Key takeaways
- Earlier menopause, removal of both ovaries and more years since the final period all track with older blood epigenetic age.
- Severe or late hot flashes have been linked with older readings on clocks trained on health outcomes.
- A lower clock reading with hormone therapy was reported in cheek cells rather than blood, and it came from observational data.
- Current menopause guidance supports hormone therapy for symptoms and bone protection in the right women, not for changing a biological age number.
What studies show about menopause and the clock
The key study pooled four large groups of women, including the Women's Health Initiative. In blood, faster epigenetic aging was linked with earlier menopause, with bilateral oophorectomy and with a longer time since menopause.1
The researchers also used genetic variants that affect the age of menopause to test the direction of the link. Their analysis suggested menopause speeds up epigenetic aging of blood rather than the other way around, though they said mechanistic studies are still needed to settle cause and effect.1
For a woman in her fifties, this mostly confirms what doctors already watch for. Menopause is a time when heart risk, bone loss and metabolic changes pick up, and those are the areas where standard care makes a measurable difference.
Hot flashes and biological age
In a Women's Health Initiative study of more than 1,200 postmenopausal women who were not taking hormone therapy, severe hot flashes were associated with an older PhenoAge reading, and hot flashes that started late were associated with older readings on both PhenoAge and GrimAge, two clocks trained on health and mortality.2
This does not mean hot flashes damage your cells. It may mean that women with severe or late symptoms share other underlying differences. It is one more reason to take persistent symptoms seriously and discuss them with your clinician.
Early menopause and pace of aging
A 2025 analysis of 770 postmenopausal women in a national US survey found that a reproductive profile marked by premature menopause went with a faster pace of aging on a pace-of-aging clock and with higher mortality. The other clocks tested did not show the same difference.3
If you went through menopause early, whether naturally or after surgery, the more useful step is to talk with your clinician about bone density, heart risk and whether hormone therapy is appropriate for you.
What hormone therapy studies show, honestly
In the large pooled study, women who had used menopausal hormone therapy had a lower epigenetic age in cheek cells. That finding was in cheek cells, not blood, the tissue most clock tests use, and it came from observation, not a randomized trial.1
The 2022 hormone therapy position statement from the North American Menopause Society describes what hormone therapy is established to do. It remains the most effective treatment for hot flashes and genitourinary symptoms of menopause and has been shown to prevent bone loss and fracture.4
The same statement says the benefit-risk balance is favorable for women younger than 60 or within 10 years of menopause onset who have no contraindications, and less favorable when therapy starts later because of higher absolute risks of heart disease, stroke, blood clots and dementia.4
In practice, the question to bring to your clinician is not whether hormones will make you biologically younger. It is whether your symptoms, bone density, family history and personal risks make hormone therapy a reasonable choice for you right now.
| Question | What the evidence says | Strength |
|---|---|---|
| Does menopause speed up blood epigenetic aging? | Earlier menopause and oophorectomy linked with older blood clocks | Consistent, partly causal evidence |
| Are severe hot flashes linked with clocks? | Linked with older PhenoAge and GrimAge readings | One large observational study |
| Does hormone therapy slow blood clocks? | Not shown in blood; lower age reported in cheek cells | Weak, observational |
Next step
If you are curious how a biological age report would look at your stage of life, read how to read a biological age report, or start at the biological age testing hub. Many women in the Philadelphia suburbs pair that question with a broader menopause conversation, which belongs with your clinician.
Frequently asked questions
Should I start hormone therapy to lower my biological age?
No. There is no trial evidence that hormone therapy changes a blood clock score, and the decision should be based on your symptoms, bone health and personal risks, weighed with your clinician.
Does perimenopause affect a biological age test?
The studies above looked mainly at women after menopause. Methylation results can also shift with illness or major stress, so a result taken during a rough patch should be read with that in mind.
Do men see similar changes with age?
Men's clocks also change with age, but menopause is a distinct, relatively sudden hormonal change. The menopause findings here do not translate directly to men.
Related reading
This article is for general education and is not medical advice. Decisions about testing and treatment should be made with your clinician. If you have severe symptoms, call 911. For a suspected poisoning, call Poison Control at 1-800-222-1222.
