Intelligence Predicts Health and Longevity, but Why?

  title={Intelligence Predicts Health and Longevity, but Why?},
  author={Linda S. Gottfredson and Ian J. Deary},
  journal={Current Directions in Psychological Science},
  pages={1 - 4}
Large epidemiological studies of almost an entire population in Scotland have found that intelligence (as measured by an IQ-type test) in childhood predicts substantial differences in adult morbidity and mortality, including deaths from cancers and cardiovascular diseases. These relations remain significant after controlling for socioeconomic variables. One possible, partial explanation of these results is that intelligence enhances individuals' care of their own health because it represents… 
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IQ and the health of states
  • S. Kanazawa
  • Psychology
    Biodemography and social biology
  • 2008
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  • 2004
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Longitudinal cohort study of childhood IQ and survival up to age 76
IQ at age 11 years was significantly associated with survival up to 76 years in an Aberdeen cohort and the association was unaffected by adjustment for overcrowding Men with high IQ were more likely to die in active service in the second world war.
Childhood IQ, Social Class, Deprivation, and Their Relationships with Mortality and Morbidity Risk in Later Life: Prospective Observational Study Linking the Scottish Mental Survey 1932 and the Midspan Studies
Investigating how childhood mental ability (IQ) is related to mortality and morbidity risk, when socioeconomic factors are also considered found lower childhood IQ was related to higher mortality risk and some specific causes of death or morbidity.
IQ at age 11 and longevity: Results from a follow-up of the Scottish mental survey 1932
Evidence of a deleterious effect of low IQ and a protective effect of belonging to the highest IQ group is found and the odds ratios of survival for IQ groups (divided into quartiles) for men and women are examined for the first time.
The impact of childhood intelligence on later life: following up the Scottish mental surveys of 1932 and 1947.
This research, using the surveys' data, examined the stability of intelligence differences across the life span, the determinants of cognitive change from childhood to old age, and the impact of childhood intelligence on survival and health in old age.
Childhood mental ability and smoking cessation in adulthood: prospective observational study linking the Scottish Mental Survey 1932 and the Midspan studies
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