From Menarche to Menopause: The Neural Connection
Emerging research on neuroanatomical patterns across major reproductive transitions is offering new insights into how hormonal changes may shape the adolescent brain and influence mental health vulnerability.
Puberty is a critical developmental period marked by profound hormonal, neurological, and psychological changes. Studies show that during this stage, females experience significantly higher rates of anxiety and depression compared to males. Researchers are now investigating how fluctuations in reproductive hormones—particularly oestradiol—may contribute to structural and functional brain changes linked to emotional regulation.
In the current study by Freund et al., researchers used existing Magnetic Resonance Imaging data to map the neuroanatomical patterns associated with the transition to menarche (data available through the ABCD study) and the transition from premenopause to menopause (UK Biobank(data available through ABCD study) and transition from pre menopause to menopause ( data).
For both datasets, a matching list of 201 brain features, including 66 cortical and 135 subcortical regions, was created. The researchers found significant associations with menarche onset in 83 of 201 brain volumes, while the 83menopause transition was associated with 17 brain volume features.
As both menarche and menopause are driven by significant hormonal fluctuations—albeit in opposite directions—researchers explored whether these reproductive transitions share common neural signatures. Interestingly, the study identified a weak but statistically significant overlap across seven brain regions between the menarche and menopause transitions. These regions included the third and fourth ventricles, the left choroid plexus, and the medulla. In contrast, regions within the amygdala showed greater volumes outside the reproductive phase, suggesting distinct neuroanatomical changes linked to hormonal states across the reproductive lifespan.
Snapshot
Reference: Melanie Freund et.al. Brain anatomy in major hormonal transition phases: Longitudinal and cross-sectional volume associations with menarche and menopause. 2026. Published on bioRxiv.
