unPAUSED with Dr. Mary Claire Haver Brain Fog, Memory Loss, and Alzheimer’s Risk During Menopause with Dr. Lisa Mosconi
Mar 24, 2026
Dr. Lisa Mosconi, neuroscientist and author focused on menopause and the brain, explains why midlife brain fog and memory lapses matter. She discusses how menopause can unmask Alzheimer's risk, metabolic changes in the brain, surprising shifts in estrogen receptors, and efforts to build large-scale prevention programs. Short, urgent, and eye-opening conversations about midlife brain health.
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Alzheimer's Often Starts In Midlife
- Alzheimer's is a midlife disease with pathology beginning decades before symptoms. Dr. Lisa Mosconi showed plaques and tangles can appear in the 40s–50s and progress silently until cognitive decline emerges.
- Women show more early Alzheimer’s red flags in midlife brain scans than men, especially after perimenopause, suggesting sex-specific vulnerability linked to hormonal transitions.
Women's Alzheimer Risk Doubles After Midlife
- Beginning at about age 45 women have roughly twice the risk of Alzheimer's compared with men of the same age. This divergence coincides with midlife hormonal changes.
- Menopause is highlighted as the likely midlife event that could explain the increased long-term Alzheimer's risk in women.
Menopause Lowers Brain Glucose Metabolism
- Menopausal transition produces measurable reductions in brain glucose metabolism in regions affected by Alzheimer's. Mosconi reported up to a 30% decrease in glucose uptake in postmenopausal brains.
- This hypometabolism was visible across pre-, peri-, and postmenopausal groups with progressive darkening on PET scans in affected regions.
