Largest HRT-Dementia Study Suggests Lower Risk for Postmenopausal Women

The largest study of HRT and dementia, tracking 183,450 UK postmenopausal women over 13 years, found HRT use for at least one year was linked to 10% lower dementia risk and 16% lower Alzheimer's risk versus non-users. Published in Alzheimer's & Dementia on 26 August 2026, it cannot prove causation; HRT users had higher education levels, a noted limitation.