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IQ (edit)

Revision as of 15:49, 13 May 2023

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→‎IQ and fertility: accidental duplication
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However, the link between lower IQ and lower fertility may not be completely mediated by factors such as attained status and wealth, where this relationship is found. There is evidence that IQ is positively linked with several general health parameters such as longevity,<ref>https://academic.oup.com/ije/article/45/1/178/2363476</ref> and also to general health (when controlling for socioeconomic status differentials).<ref>https://www.bmj.com/content/332/7541/580.short</ref> IQ even seems to be linked to other general health markers such as handgrip strength,<ref>https://psycnet.apa.org/record/2016-41417-010</ref><ref>https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6007683/</ref> seemingly even when lifestyle confounds such as exercise are controlled for. Furthermore, there is some evidence that infertile men have lower average IQs than fertile men.<ref>https://www.auajournals.org/doi/abs/10.1097/01.JU.0000556126.60126.46</ref> As fertility is a reliable biomarker for overall male health,<ref>https://www.sciencedirect.com/science/article/abs/pii/S1472648321004831</ref> and in light of the fact that more physically healthy men tend to have more children,<ref>https://onlinelibrary.wiley.com/doi/full/10.1111/padr.12357</ref> the link between IQ and general health would be expected to influence the observed relationships between IQ and fertility.
However, the link between lower IQ and lower fertility may not be completely mediated by factors such as attained status and wealth, where this relationship is found. There is evidence that IQ is positively linked with several general health parameters such as longevity,<ref>https://academic.oup.com/ije/article/45/1/178/2363476</ref> and also to general health (when controlling for socioeconomic status differentials).<ref>https://www.bmj.com/content/332/7541/580.short</ref> IQ even seems to be linked to other general health markers such as handgrip strength,<ref>https://psycnet.apa.org/record/2016-41417-010</ref><ref>https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6007683/</ref> seemingly even when lifestyle confounds such as exercise are controlled for. Furthermore, there is some evidence that infertile men have lower average IQs than fertile men.<ref>https://www.auajournals.org/doi/abs/10.1097/01.JU.0000556126.60126.46</ref> As fertility is a reliable biomarker for overall male health,<ref>https://www.sciencedirect.com/science/article/abs/pii/S1472648321004831</ref> and in light of the fact that more physically healthy men tend to have more children,<ref>https://onlinelibrary.wiley.com/doi/full/10.1111/padr.12357</ref> the link between IQ and general health would be expected to influence the observed relationships between IQ and fertility.
More speculatively, a synthesis of the above data would suggest that the men with the lowest reproductive success would tend to be low-educated, low status, low income, and (generally) low IQ men, though there may be more mating skew among this class of men. In contexts where male IQ itself predicts lower fertility, than the only high IQ cohort of men with low fertility overall would be maladjusted high-IQ men who have attained a lower educational and occupational status than their IQs would predict.


====Executive functions====
====Executive functions====
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