Biomarkers for Biological Aging in Postmenopausal Women

Biological aging describes the cumulative decline in physiologic function that can differ from chronological age. Menopause marks a reproductive transition that may influence biological aging through loss of estrogen, changes in body composition, chronic inflammation, and epigenetic regulation. These pathways may contribute to heterogeneity in cardiovascular, skeletal, cognitive, and functional outcomes among postmenopausal women. Researchers use composite indices and molecular measures, including phenotypic age and DNA methylation or epigenetic clocks, to quantify these processes. However, available biomarkers vary by tissue and intended outcome. No biological aging test currently provides a validated threshold that can direct routine menopause care. In this column, I summarize mechanisms that may connect menopause with biological aging, review major biomarkers, and describe clinical outcomes and symptoms that these measures may help explain. I also discuss evidence-based opportunities for nursing intervention. Future researchers should follow diverse cohorts across the perimenopause transition and evaluate whether changes in aging biomarkers predict outcomes or treatment response.