Is there a ‘window of opportunity’ to prevent Alzheimer’s in women?

The latest research highlights the potential impact of early menopause and hormone treatment on the risk of Alzheimer's disease in women. A study published in the journal Alzheimer's & Dementia analyzed over 180,000 postmenopausal women in the U.K. and found that those who used hormone replacement therapy (HRT) experienced a 10% reduction in the risk of all forms of dementia and a 16% reduction in the risk of Alzheimer's specifically over a 13-year period.

Women who underwent surgical menopause saw an even more significant reduction in dementia risk, while those who started HRT at younger ages had a lower overall risk of developing dementia. A second study published in JAMA Network Open found that earlier onset of menopause and surgical menopause were associated with an increased likelihood of cognitive decline and earlier diagnosis of Alzheimer's disease, particularly in women who experienced faster accumulation of "white matter hyperintensity" in their brains.

While these findings suggest a possible correlation between menopause treatment and cognitive decline, experts caution that more research is needed to confirm these results and understand the underlying mechanisms. The studies emphasize the importance of early intervention to potentially prevent Alzheimer's disease in women.