Menopause remodels the brain, raising Alzheimer's risk

Published in Neuron, this review synthesizes current understanding of menopause as a critical neurological transition, not just a reproductive one. The authors detail how declining estrogen levels trigger widespread brain changes—affecting energy metabolism, inflammation, and amyloid accumulation—that accelerate brain aging and contribute to women's disproportionate Alzheimer's risk (nearly two-thirds of cases occur in women). The paper is important because it reframes menopause as a modifiable risk window rather than an inevitable decline. Understanding these mechanisms opens doors for targeted interventions during perimenopause and early menopause, when the brain is most vulnerable but potentially responsive to treatment. The review suggests that hormone therapy timing matters critically, and that metabolic support and anti-inflammatory strategies might protect cognitive function. For the longevity community, this underscores that female brain aging follows a distinct trajectory requiring sex-specific approaches. As women represent both the majority of the aging population and Alzheimer's patients, understanding menopause's neurobiological impact is essential for developing effective preventive strategies for cognitive longevity.