Greater intelligence may in part partially explain why people from a high socio-economic background live longer than those of lower social status, researchers have suggested.
And yes, they are indeed saying that higher intelligence is likely to lead to higher socio-economic status.
No, not all of the difference, but 25% or so of the difference in lifespans between different socio economic groups appears to come from the fact that higher intelligence leads both to being in a higher socio-economic group and also to living longer.
Professor Sir Michael Marmot, of University College, London, who leads the Whitehall II study of civil servants, which has uncovered many of the effects of social class on mortality, and his colleague Mika Kivimaki, offered three possible explanations for the effect in a commentary for the journal.
“Intelligence might lead to greater knowledge about how to pursue healthy behaviours,” he wrote. Intelligence may “cause” socio-economic position; that is, more intelligence leads to more education, and greater income and occupational prestige. “Intelligence may be a marker for something else, and it is that something else, early life exposures, for example, that leads to mortality,” Dr Batty said.
Puts those Whitehall studies, which are the gold standard of this sort of research, into something of a new light, eh?
Bright people rise to the top of the civil service: bright people live longer. Thus people at the top of the civil service live longer than those not at the top.
It\’s not all about social oppression of the lower orders you know.