Menopause Study Finds Brain Pauses Gray Matter Rewiring Across 1,095 Female Scans

On September 8, a research article in Nature Communications examined brain scans from 1,095 women at three distinct hormonal phases: their initial menstrual cycle, during pregnancy, and at menopause. The study revealed that the expected gray matter reduction associated with hormonal changes does not take place during menopause, and the typical age-related brain shrinkage temporarily ceases. Monthly gray matter declines of 0.13 percent during puberty and 0.12 percent during pregnancy were observed, aligning with previous findings. Co-author Sophie van 't Hof emphasized this as the first comprehensive analysis of whole-brain changes during menopause. Magdalena Martínez-García described it as the inaugural direct longitudinal study comparing structural brain alterations across all three hormonal transitions, despite limitations such as self-reported menopause stages.