Brain power in the golden years: why a late-life peak could transform Thailand’s aging society
A global study suggests that the human mind may not be at its most brilliant in youth after all. Instead, the sharpest mix of knowledge, judgment, and life experience often emerges in the late 50s to early 60s. Fluid intelligence—those quick, on-the-spot reasoning and memory tasks—peaks early and then declines, but crystallized intelligence—the vast store of facts, skills, and experience built up over a lifetime—continues to grow for decades. In practice, this means maturity and wisdom can compensate for slower processing speed, shaping how individuals think, decide, and lead well into later life. The finding resonates beyond science labs, offering a timely lens for Thailand as the country navigates rapid demographic change, a rising demand for elder care, and an economy that increasingly relies on experienced leadership and institutional knowledge.