@guardian: What ‘era’ is your brain in? Scientists have identified five major “epochs” of human brain development in one of the most comprehensive studies to date of how neural wiring changes from infancy to old age.⁠ ⁠ This revealed five broad phases, split up by four pivotal “turning points” in which brain organization moves on to a different trajectory, at around the ages of nine, 32, 66 and 83 years.⁠ ⁠ The study found that in a person’s early 30s the brain’s neural wiring shifts into adult mode – the longest era, lasting more than three decades. From 32 years, the brain architecture appears to stabilize compared with previous phases, corresponding with a “plateau in intelligence and personality” based on other studies.⁠ “Looking back, many of us feel our lives have been characterized by different phases,” said Prof Duncan Astle, a senior author of the study. “It turns out that brains also go through these eras.”⁠ ⁠ Follow the link in bio to read more.

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Wednesday 26 November 2025 09:34:46 GMT