Early menopause linked to cognitive and brain decline

A study published in Jama Network Open suggests that women who experience menopause earlier may face a less favorable brain aging trajectory decades later. Following 2,603 women for up to 18 years, researchers identified a significant association between the age of menopause and changes in brain structure and function.

The primary finding involves white matter hyperintensities—bright areas detected on MRI scans. Among women experiencing spontaneous menopause, a five-year difference in the age of onset is associated with a 15% increase in the volume of these alterations over a decade. These white matter fibers connect brain regions and are vital for memory, attention, and movement.

The research indicates that earlier spontaneous menopause is linked to a faster accumulation of these changes, which are associated with poorer brain health, memory problems, and neurological manifestations. Additionally, the study noted an association with the age of Alzheimer's diagnosis; a ten-year difference in menopause age related to an Alzheimer's diagnosis occurring 1.8 years earlier. Researchers noted that while estrogen levels may play a role due to their influence on inflammation and brain metabolism, accelerated biological aging could also be a contributing factor to both early menopause and brain changes.