The Economist reports on Balls and Brains:
[Test Subjects] gave semen samples that were analysed for sperm concentration (ie, number of sperm per cubic centimetre), sperm count (ie, total number of sperm in the ejaculate) and sperm motility.
Ms Arden found 425 cases where samples had been collected and analysed from unvasectomised men who had managed to avoid spilling their seed during the collection process and had answered all the necessary questions for her to test her hypothesis, namely that their [quantified core intelligence across several disciplines] would correlate with all three measures of their sperm quality.
They did. Moreover, neither age nor any obvious confounding variable that might have been a consequence of intelligent decisions about health (obesity, smoking, drinking and drug use) had any effect on the result. Brainy men, it seems, do have better sperm.
By implication, therefore, they have fitter bodies over all, at least in the Darwinian sense of fitness, namely the ability to survive, to attract mates and to produce offspring.
Now, what if you’re a really smart guy? :-)
There’s been a lot of political rhetoric being broadcast both on CNN and around the water cooler about basic economics. Everyone seems to have an opinion about tax cuts and about the steps we should take as a nation to improve our economic vitality. The thing that irks me is that it seems to be a [...]
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Really Smart Guy is Johnny Fuery’s blog. The views expressed herein do not necessarily represent anything other than ramblings, the occasional five syllable word notwithstanding.