"They may, for example, be less likely to smoke, more likely to eat healthy foods or to exercise, and so on." I would chalk up the small correlation documented to this. Higher IQ people tend to be higher on the social scale and be healthier in a large variety of ways.
Why would you make that assumption? IQ and sperm quality are probably both impacted by deleterious mutations. I would assume quality in both is measuring mutational load way before I made suppositions about SES.
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"They may, for example, be less likely to smoke, more likely to eat healthy foods or to exercise, and so on." I would chalk up the small correlation documented to this. Higher IQ people tend to be higher on the social scale and be healthier in a large variety of ways.
Why would you make that assumption? IQ and sperm quality are probably both impacted by deleterious mutations. I would assume quality in both is measuring mutational load way before I made suppositions about SES.