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Lead exposure in last century shrunk IQ scores of half of Americans: study

today.duke.edu

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Re: Lead exposure in last century shrunk IQ scores of half of Americans: study

#11

Perhaps past lead usage in fuels will indirectly lead to collapse of the civilisation: Lead is known to decrease empathy and increase crime. I don’t want to generalise an entire generation but boomer generation was heavily poisoned by lead and perhaps this made them more selfish and less emphatic. Maybe this is the primary cause of many current problems? I wonder if humans were supposed to be more emphatic in past be…

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Re: Lead exposure in last century shrunk IQ scores of half of Americans: study

#12

Perhaps past lead usage in fuels will indirectly lead to collapse of the civilisation: Lead is known to decrease empathy and increase crime. I don’t want to generalise an entire generation but boomer generation was heavily poisoned by lead and perhaps this made them more selfish and less emphatic. Maybe this is the primary cause of many current problems? I wonder if humans were supposed to be more emphatic in past be…

FWIW the article is claiming Peak Lead would be Gen X.

Re: Lead exposure in last century shrunk IQ scores of half of Americans: study

#13

Earlier quoted context omitted.

From what I've read the removal of lead from gasoline is partially a factor in the sudden reduction of crime during the latter half of the 20th century, but it's not enough to explain the entire trend... which seems to be a preponderance of factors.

People say this about lead, people say this about abortion, people say this about building more prisons and 3-strike laws. Nothing is monocausal, don't trust anyone who makes such a claim unless they provide extraordinary evidence.

Obviously nothing is monocausal, but it seems like the link with lead here is best supported by evidence among the things you've listed. It holds constant across several countries and cultures where those other factors are quite different. Western Europe wasn't throwing up prisons and enacting 3-strike laws, but saw similar declines in crime. You can find similar counter examples around abortion access as well. Those thing probably contribute, but the effect size of removing lead from the environments seem really large!

Re: Lead exposure in last century shrunk IQ scores of half of Americans: study

#14

Earlier quoted context omitted.

From what I've read the removal of lead from gasoline is partially a factor in the sudden reduction of crime during the latter half of the 20th century, but it's not enough to explain the entire trend... which seems to be a preponderance of factors.

People say this about lead, people say this about abortion, people say this about building more prisons and 3-strike laws. Nothing is monocausal, don't trust anyone who makes such a claim unless they provide extraordinary evidence.

[deleted]

Re: Lead exposure in last century shrunk IQ scores of half of Americans: study

#15

Perhaps past lead usage in fuels will indirectly lead to collapse of the civilisation: Lead is known to decrease empathy and increase crime. I don’t want to generalise an entire generation but boomer generation was heavily poisoned by lead and perhaps this made them more selfish and less emphatic. Maybe this is the primary cause of many current problems? I wonder if humans were supposed to be more emphatic in past be…

Crime rates have fallen historically until COVID. I think it's more likely the post WW2 and post Cold War (perceived) eras were periods of irrational exuberance culturally in the west with uncommon optimism in western lead globalism and its future (What you consider civilization I take it). The last few years were a big time reality check on the collective interest in that future.

The rate of violent crime nearly quadrupled between 1960 and its peak in 1991 in the US. Even with the COIVD bump, rates are comparable to the mid 60s, and aren't tracking the previous climb.

Re: Lead exposure in last century shrunk IQ scores of half of Americans: study

#16

It makes me angry to think of how wreckless the generations before millenials were. Lead's risks and damages were well-known long before 1996. And they still didn't ban it until then.

I agree that people have been reckless with population safety in past, but your comment seems to imply that the Millenial generation are somehow flawless with regards with this subject. While safety is now more stringent than in the past, I very much doubt that this is the case.

Re: Lead exposure in last century shrunk IQ scores of half of Americans: study

#17
post #6

Didn't we have a previous study debunking this research on statistical grounds?

there's this thing about the modern internet era which makes it possible to find a study to debunk (or support) pretty much any idea/theory you want.

specially in the midst of an information/propaganda war

all I'm trying to say is that I have decided not to think in the way you just did e.g. "where's that study which supports what I already believe?". It doesn't seem like a good tactic anymore

Re: Lead exposure in last century shrunk IQ scores of half of Americans: study

#19

It makes me angry to think of how wreckless the generations before millenials were. Lead's risks and damages were well-known long before 1996. And they still didn't ban it until then.

I agree that people have been reckless with population safety in past, but your comment seems to imply that the Millenial generation are somehow flawless with regards with this subject. While safety is now more stringent than in the past, I very much doubt that this is the case.

Physical safety is more stringent. You can't swing a dead cat without a horde of people with safety vests and clipboards writing you up for it.

However, the planet is arguably the most ideologically polluted it's ever been. First world cultures have developed an aversion to individual and organization/group responsibility. Democracy is not doing great. Many institutions are bankrupt. Hardship is looming. We're in for a wild ride.

Re: Lead exposure in last century shrunk IQ scores of half of Americans: study

#20

It makes me angry to think of how wreckless the generations before millenials were. Lead's risks and damages were well-known long before 1996. And they still didn't ban it until then.

Same goes for sugar. We know the dangers it poses, we are also seeing how much it increases risk of death due to covid.

I don't think we should be surpsied, as much as pushing to regulate this garbage.

As an aside, Michelle Obama's campaign when Obama was in office was about improvement children's health. Her focus was going to be on nutrition (lunch food). Shortly thereafter Coke and Pepsi came in with "donations" and the whole thing became about exercise, no focus on nutrition.

There should be no surprise that capital takes precedent over health in our current system / culture.

Arguably, we should care more about sugar than we do about covid.

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