Discovery: Here are the five key ages of our brain

DISCOVERY. Here are the five key ages of our brain

November 26, 2025

By Camille Gaubert THE Subscribers

Our brains evolve with age, but not in a stable and linear way, new research shows. These transitions in connectivity between neurons are actually true turning points occurring around ages 9, 32, 66, and 83.

Brain topology in its longest phase, the adult phase (32-66 years)

Brain topology in its longest phase, the adult phase (32-66 years)

Credits: Dr Alexa Mousley, University of Cambridge

Our brain goes through five phases of "rewiring" during our lives, with transitions occurring around the ages of 9, 32, 66, and 83, a new study published in the journal determines for the first time Nature CommunicationsThese changes affect the efficiency of connections, which reach their maximum during the second phase, between 9 and 32 years of age.

The evolution of the "road map" of our brains

Brain Aging Brain plasticity White matter

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