Women taking estrogen had fewer signs of Alzheimers in their brains

Women who used estrogen-only hormone therapy later in life were less likely to develop dementia and showed fewer signs of Alzheimers disease in their brains, according to a large study of more than 21,000 participants. Hormone therapy use was linked to 39% lower odds of a dementia diagnosis and 35% lower odds of Alzheimers-related brain changes at autopsy, including amyloid plaques and tau tangles. Biomarker tests also suggested less amyloid buildup among hormone therapy users.