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"Being smart is a double-edged sword. Intelligent people appear to live longer, but many of the genes behind brilliance can also lead to autism, anxiety, and depression, according to two new massive genetic studies."http://www.sciencemag.org/news/2018/06/hundreds-new-genes-may-underlie-intelligence-also-autism-and-depression …
@evolutionscribe That's the opposite of what they found. Anxiety/depression are *inversely* genetically correlated with IQ. Look at figure 4: https://www.biorxiv.org/content/biorxiv/early/2017/09/05/184820.full.pdf … all negative signs. ie higher IQ = lower depression/anxiety.
If anyone ever tries to tell you that IQ genetically correlates with anything bad other than autism symptoms and myopia, insist on seeing the correlation matrix and then triple-check at https://en.wikipedia.org/wiki/Genetic_correlation#Intelligence … ...
And bipolar disorder(small) , if I remember well
I think that one might be sampling error (rg power is affected by both traits' sample sizes and SNP heritabilities as well as the rg effect size itself) but I'd have to check. In any case, genetic correlations of IQ with bad things are very rare and surprising.
Why is autism the (highly likely) exception?
See the link. Possibly trait heterogeneity: confusing brokenness/inability to do theory of mind with ability & preference for abstract systematizing.
Right. That's probably the most famous takeaway from the Terman Study - IQ 130 types are as healthy or healthier than everyone else. This is only reinforced by all the cross-sectional/longitudinal studies or retrospectives - TIP, SMPY, HCES etc.
(People like to quote that Australian psychiatrist-recruited study and the Mensa study the other year to show high IQ means poorer mental and physical health - and those are precisely the studies with the most extreme self-selection and incentive to report illness!)
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