Maternal health benefits of breastfeeding

Early coverage described how lactation aids maternal recovery, lowers breast and ovarian cancer risk, improves bone density, reduces stress hormones, and supports postpartum weight loss. Subsequent Brazilian research added a cardiovascular dimension, noting an 11% lower risk of heart disease for breastfeeding women and further reductions in stroke (12%) and heart‑attack risk (14%) with longer nursing periods. The Brazilian Society of Cardiology linked these effects to a metabolic “reset” during lactation—enhanced insulin sensitivity, lower blood pressure, reduced diabetes risk, and the action of hormones such as oxytocin, prolactin, glucocorticoids, ghrelin and growth hormone that improve endothelial function and promote vasodilation.

The latest SBC report, released on International Breastfeeding Day, reiterated the same cardioprotective figures and emphasized that while not breastfeeding does not automatically raise risk, extended lactation provides measurable benefits. Vice‑president Alexandra Oliveira de Mesquita highlighted the findings during the August Golden campaign, reinforcing breastfeeding as a multifaceted preventive factor for women’s long‑term health.