Summary
A new study published in Neurology suggests that estrogen-only hormone therapy after menopause may help protect against Alzheimer's disease, with women who received it having 35% lower odds of Alzheimer's hallmarks in their brains. This research, based on autopsy findings of over 5,000 women with hysterectomies, provides new insights into the role of estrogen and calls for a reconsideration of previous findings on hormone therapy and Alzheimer's risk.