Menopause alters the female brain differently from the way puberty and pregnancy do. This is demonstrated by a study conducted with more than one thousand women by researchers at the Amsterdam University Medical Center. The findings have been published in the journal Nature Communications.

Puberty, pregnancy, and menopause represent significant hormonal transitions in a woman's life, with profound effects on the brain. However, it remains unclear whether the changes associated with these three stages involve common or distinct mechanisms. Moreover, although various studies have examined brain changes during puberty and pregnancy, research on the changes associated with menopause has been more limited to date.

Researchers led by neuroscientist Sophie van 't Hof analyzed structural magnetic resonance imaging data collected at various points during the transitions of puberty, pregnancy, and menopause, comparing them with data from control groups.

The results indicate that puberty, pregnancy, and menopause are associated with distinct patterns of structural changes in the brain, demonstrating that the brain does not respond uniformly to hormonal fluctuations.

Both puberty and pregnancy are associated with a reduction in total and cortical gray matter volume compared with control groups. Specifically, losses were observed in similar areas—including the prefrontal, parietal, and temporal association cortices—while differences were noted in other regions.

Menopause, by contrast, showed no significant reductions in gray matter compared with premenopausal and postmenopausal control groups. This could be related to the decrease in sex steroid hormone levels observed previously, but further studies will be needed to establish a causal link.