IQ is positively correlated with physical and mental health, height and longevity. We have strong evidence for all of those. Given it’s generally positive effec

IQ is positively correlated with physical and mental health, height and longevity. We have strong evidence for all of those. Given it’s generally positive effects and the fact that we have copious examples of high IQ success stories this result seems unlikely to hold up. IQ predicts health and longevity. https://journals.sagepub.com/doi/abs/10.1111/j.0963-7214.2004.01301001.x https://journals.sagepub.com/doi/abs/10.1111/j.0963-7214.200... Intelligence Predicts Health and Longevity, but Why? Linda S. Gottfredson1, Ian J. Deary Low iq is a risk factor for several mental health disorders. https://ajp.psychiatryonline.org/doi/abs/10.1176/appi.ajp.2008.08030343 https://ajp.psychiatryonline.org/doi/abs/10.1176/appi.ajp.20... > Results: Lower childhood IQ was associated with increased risk of developing schizophrenia spectrum disorder, adult depression, and adult anxiety. Lower childhood IQ was also associated with greater comorbidity and with persistence of depression; the association with persistence of generalized anxiety disorder was nearly significant. Higher childhood IQ predicted increased risk of adult mania. Childhood IQ and adult mental disorders: a test of the cognitive reserve hypothesis Karestan C Koenen