Aging tends to roll out in reasonably clear tiers: naïve childhood, the feral teen years, exuberant young adulthood, pragmatic middle-age, sage elderhood, and if you’re lucky, the superager summit. But apparently, the brain keeps its own calendar. According to a new study, it moves through five stages marked by dramatic turning points.
Scientists compared MRI diffusion scans of more than 3,800 people, ranging from newborns to 90-year-olds. The findings, published recently in Nature Communications, reveal central nervous system hubs that grow and reorganize on a timeline that doesn’t map neatl