Researchers Map 5 Key Brain Phases Across Life
A large Cambridge study finds the brain doesn’t mature steadily but shifts at four key ages: 9, 32, 66, and 83.
Adolescence — long believed to end in the teens — actually lasts until the early 30s, when brain efficiency peaks.
After 66, brain networks start to separate into more isolated regions, aligning with early ageing and higher dementia risk.
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