Medical Relation between intelligence and sleep, immune system or inheritance?

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The discussion centers on the relationship between intelligence and various factors: sleep duration, immune system strength, and inheritance. Participants seek studies that explore how sleep duration impacts intelligence, the correlation between a strong or weak immune system and cognitive abilities, and the heritability of intelligence, particularly the contributions from parents. References to existing literature highlight that searching for "heritability of g" yields extensive resources, including specific websites and academic papers. Access to college libraries and public databases like PubMed is suggested for further research on these topics.
Gerenuk
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Does anyone know studies which link intelligence to
a) sleep (duration)
b) immune system (weak/strong)
c) inheritance (how much inherited, from father/mother?)
I vaguely remember hearing some results to each of these topics.
 
Biology news on Phys.org
I just know I've been to a website with correlates of intelligence -- results from hundreds of research papers summarized into a standard format. But I can't seem to find it now.
 
As for (c), there's lots of information on that. Searching for "heritability of g" gives thousands of websites like
http://members.cox.net/bvv/h2b.html
http://en.wikipedia.org/wiki/Heritability_of_IQ

If you have access to a college library you can find many papers on the subject as well. Even without, I think PubMed is accessible to the general public (?).
 
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