Why breastfeeding's benefits may last years: Immune cells link lactation to long-lasting health

It's widely known that breastfeeding impacts the health of both mother and child, but the underlying biology that leads to these effects has been understudied. In a review article published in Trends in Immunology, researchers highlight recent studies showing T cells—white blood cells that play a pivotal role in the immune system—shape the baby's immune system, support healthy gut bacteria, and reduce the risk of breast cancer for the mother.