Abstract
To investigate whether childhood general intelligence, fluid intelligence (Gf), and crystallized intelligence (Gc) predict various health outcomes in middle adulthood. This prospective longitudinal study followed a nationally representative sample of 717 Luxembourgers. Intelligence and socioeconomic status (SES) were measured at age 12; physical, functional, and subjective health were assessed at age 52. Childhood general intelligence and fluid intelligence showed substantial positive effects on adult health outcomes, whereas the corresponding effects of crystallized intelligence were considerably smaller. Childhood intelligence incrementally predicts various dimensions of adult health across 40 years-even in a country in which all citizens are guaranteed access to high-quality health care.
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