Simple blood test could reveal if your HRT is hiking your dementia risk

KEY INFORMATION:

WHO: Professor Eef Hogervorst from Loughborough University and a team of researchers.

WHAT: Analysis of blood samples from 2,766 women to track the link between hormone therapy and Alzheimer’s signals.

WHERE: Loughborough University.

WHEN: 13 March 2026.

WHY: To identify which women are most vulnerable to dementia before starting menopause treatments.

New research into hormone therapy and dementia risk offers vital clues for women.

Navigating the menopause can feel like a full-time job. From hot flushes to night sweats, many women rely on hormone therapy to get their lives back on track.

But for years, a scary question has lingered: does this treatment affect your risk of dementia? Scientists at Loughborough University think they have finally found a way to spot who is at risk.

The secret signal in your blood

Researchers looked at blood samples from 2,766 women that were taken back in the late nineties. They followed these women for over two decades to see who developed Alzheimer’s.

They were looking for a specific biomarker called p-tau217. Think of this like a smoke alarm for the brain that goes off before the fire actually starts.

If women had high levels of this signal in their blood, they were in for a much tougher time. The study found these women faced roughly three times the risk of developing dementia.

Combined therapy under the spotlight

The risk was even more specific depending on the type of pills or patches used. For women on combined therapy—oestrogen and progesterone—the danger was higher.

In this group, those with the high biomarker signal saw their risk of dementia jump to roughly four times the normal rate. Interestingly, this pattern was not seen in women taking oestrogen-only therapy.

Personalising the menopause

This breakthrough means doctors might one day use a simple blood test to check your brain health before prescribing hormones. It is all about making sure the right woman gets the right treatment at the right time.

Professor Eef Hogervorst explained: "Hormone therapy is widely used to treat menopausal symptoms such as hot flushes and night sweats. But scientists have long debated whether it affects dementia risk."

She added: "It suggests that an Alzheimer’s biomarker may help identify which women are more vulnerable to dementia with certain hormone therapies."

While the news sounds heavy, it is actually a massive win for personalised medicine. Knowing your risk level allows you to make an informed choice about your own body and future.

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OFFICIAL SOURCE VERIFICATION: This report is based on official data from University Newsroom. Document: Hormone therapy and dementia risk: what a new study says about menopause treatment Source Link: https://www.lboro.ac.uk/news-events/news/2026/march/hormone-therapy-and-dementia-risk/