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How Longer Reproductive Years in Women Lead to Healthier Brain Aging? Study Sheds Light - Video
Overview
A new study suggests that the number of years a woman spends in her reproductive phase i.e. between her first period and menopause, may be linked to how well her brain ages later in life. Findings are published in Gigascience journal.
Researchers analysed brain scans from over 1,000 postmenopausal women and found that women who had their first period earlier, experienced menopause later, or had a longer reproductive span showed signs of slower brain aging.
“These findings support the idea that estradiol – the most potent and prevalent form of estrogen during a woman’s reproductive years – may help protect the brain as it ages,” says lead researcher Associate Professor Eileen Lueders, of the University of Auckland’s School of Psychology.
The research may point toward the potential for health interventions such as hormone treatment in the years leading up to menopause and immediately afterward to combat an increased risk of Alzheimer’s for some women.
Estradiol levels rise at puberty, remain high during most of a woman’s reproductive life, and then decline sharply around menopause. This drop in estradiol has been linked to an increased risk of dementia and other age-related brain conditions. Animal studies have shown that estradiol can help the brain by supporting neuroplasticity, protecting against inflammation, and improving communication between brain cells.
While this new study adds to the growing evidence that estradiol may play a protective role in brain health, Luders cautions that the effects were small, and estradiol levels were not directly measured. Other factors—like genetics, lifestyle, and overall health— also influence brain aging.
Reference: Eileen Luders, Inger Sundström Poromaa, Claudia Barth, Christian Gaser, A Case for estradiol: younger brains in women with earlier menarche and later menopause, GigaScience, Volume 14, 2025, giaf060, https://doi.org/10.1093/gigascience/giaf060
Speakers
Dr. Bhumika Maikhuri
BDS, MDS