“Commenting on the significance of these findings, Boldrini’s team writes, “Healthy elderly people have the potential to remain cognitively and emotionally more intact than commonly believed, due to the persistence of AHN [adult hippocampal neurogenesis] into the eighth decade of life.” In fact, “over a 65-year age span, proliferating neural progenitors, immature and mature granule neurons [neurons at different stages of maturing] and dentate gryus volume were unchanged.”