Your Brain Ages in Five Distinct Stages, New Research Shows
December 24, 2025

(WSJ) – The brain goes through five distinct stages between birth and death, a new study shows.
Scientists identified the average ages—9, 32, 66 and 83—when the pattern of connections inside our brains shift. The brain’s adolescence phase, they discovered, lasts until age 32, and then it enters a period of stability until early aging begins at 66.
The study could help explain why brain-related conditions arise at certain ages, and could provide a better road map to understanding healthy aging. (Read More)