"Researchers reveal that four ages nine, 32, 66 and 83 are points at which the brain's most pivotal development occurs. A new study has found that adolescence can continue until the age of 32, as humans hit four major turning points in brain development at the ages of about nine, 32, 66 and 83. Published on Tuesday in the journal, Nature Communications, the study examined nearly 4,000 scans of the brains of participants ranging in age up to 90."
"Researchers mapped out the brain's development using this data and discovered that humans go through five brain phases and within them, four significant life turning points as they grow, mature and decline. Importantly, they discovered, it is not until age 32 that human personality and intelligence plateau and stabilise following changes in early adolescence. According to the study, brain development and ageing undergo five separate phases: Childhood from birth to age nine Adolescence from nine to 32 Adulthood from 32 to 66"
Human brain development and ageing occur in five phases: childhood (birth–9), adolescence (9–32), adulthood (32–66), early ageing (66–83), and late ageing (83+). Nearly 4,000 brain scans of participants up to age 90 reveal four major inflection points at about ages 9, 32, 66, and 83. Each inflection corresponds to biological or cognitive shifts such as puberty, the stabilization of personality and intelligence, structural reorganisation, and eventual decline. Grey matter and white matter grow rapidly during childhood, with white matter facilitating transmission across the nervous system. Adolescent brain changes continue into the early thirties before plateauing in adulthood.
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