Relevant Magazine

Science Now Says You’re Not Actually an Adult Until 32

Science Now Says You’re Not Actually an Adult Until 32

Tuesday, December 9, 2025
Scientists say the human brain does not move through life in one smooth arc. Instead, it hits five major phases, with turning points at ages 9, 32, 66 and 83 — a timeline that pushes “full adulthood” into the early thirties. The findings come from nearly 4,000 brain scans of people ages 0 to 90,…