Intelligence Predicts Health and Longevity, but Why?

@article{Gottfredson2004IntelligencePH,
  title={Intelligence Predicts Health and Longevity, but Why?},
  author={Linda S. Gottfredson and Ian J. Deary},
  journal={Current Directions in Psychological Science},
  year={2004},
  volume={13},
  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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