@pnas.org: Small sex differences in brain aging, steeper decline in men in some regions. Does not explain why more women are diagnosed with AD. 12,638 longitudinal MRIs, 4,726 participants across 14 cohorts. Control for head-size, education, life-expectancy.
www.pnas.org/doi/10.1073/... 
Sex differences in healthy brain aging are unlikely to explain higher Alzheimer’s disease prevalence in women | PNAS
As Alzheimer’s disease (AD) is diagnosed more frequently in women, understanding the
role of sex has become a key priority in AD research. However,...
