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HRT Cuts Dementia Risk in Women
26 Aug
Summary
- HRT may reduce dementia risk by 10% in post-menopausal women.
- A 'window of opportunity' exists between ages 46 and 56 for HRT.
- Surgical menopause patients saw a 26% lower dementia risk.
A comprehensive study of 183,000 British women indicates that hormone replacement therapy (HRT) may offer substantial cognitive benefits, potentially reducing dementia risk by 10%. The research identified a key timeframe for initiating HRT, suggesting optimal results when started between the ages of 46 and 56.
Analysis of UK Biobank data over 13 years revealed that women taking HRT for at least a year were less likely to develop dementia. Those starting HRT between 46 and 50 had a 13% reduced risk, while starting between 51 and 56 showed a 23% reduction.
Further insights show that women who underwent surgical menopause experienced a notable 26% lower risk of dementia. Additionally, women with the APOE4 gene variant, a known Alzheimer's risk factor, also saw a 13% reduced dementia risk when using HRT.
These findings suggest HRT, often used for menopausal symptoms, may also play a crucial role in long-term brain health for specific groups of women, particularly those with naturally lower estrogen levels or who started periods late or hit menopause early.
