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Milllions of people worldwide suddenly have Zinc deficiency in the same year and now it's gone?
Covid infections are causing IQ drops and years of brain aging, studies suggest
31–40 of 287 posts
Re: Covid infections are causing IQ drops and years of brain aging, studies suggest
#32My wife has postcovid and this is a profound effect. Yesterday she tried to add up a series of numbers by heart, and she simply couldn’t. For context, she’s pretty mathy and used to mock me for taking out a calculator or a spreadsheet for stuff like that. She also forgets everything, which is another thing she used to be great at. It’s pretty confronting, especially now that the idea that maybe this isn’t temporary i…
Could it be that she's simply out of practice?
I doubt it. It’s not like you ever stop practicing remembering things or doing everyday math tasks.
Look, this is anecdata. I’m not making a claim about this article. I just know that my wife got substantially stupider overnight 2 years ago (plus lots of other symptoms). Via a postcovid support group organized by a semi government club here in NL she knows a bunch more people with long-term postcovid and this is the one symptom they all share. Might well still be some weird sort of selection bias etc; again, I’m not saying this is generalizable science, I’m saying that my wife got noticeably less smart and it started at the same time as all her other postcovid symptoms.
Re: Covid infections are causing IQ drops and years of brain aging, studies suggest
#33Is there any real world test where higher IQ people do better than anyone else deterministically? I am not talking about correlations. I am talking about people with higher IQ can solve X problem that people with lower IQs can't. Not the ability to spot back & white patterns on a screen. The riches people are not the highest IQ people The Noble Prize Winners are not the highest IQ people The best sports players are n…
I doubt such a test is possible because IQ is trying to be a single number. Intelligence isn’t really generalized like that.
My question is. What is this Number measuring?
Re: Covid infections are causing IQ drops and years of brain aging, studies suggest
#34Is there any real world test where higher IQ people do better than anyone else deterministically? I am not talking about correlations. I am talking about people with higher IQ can solve X problem that people with lower IQs can't. Not the ability to spot back & white patterns on a screen. The riches people are not the highest IQ people The Noble Prize Winners are not the highest IQ people The best sports players are n…
I doubt such a test is possible because IQ is trying to be a single number. Intelligence isn’t really generalized like that.
IQ as measured seems to be intended to be a "mental maturity index".
It's best administered to children to understand where they are relative to other children and makes little sense in adults.
That's why IQ is age dependent. A 12 year old with a 140 IQ should have the mental pattern matching recognition as a normal 14 year old with 100 IQ.
The standard deviation is based on the next year ups mean IQ and so on.
It doesn't necessarily measure intelligence, but in children it can be used as a proxy for intelligence since usually brain maturity is directly linked to intelligence.
Re: Covid infections are causing IQ drops and years of brain aging, studies suggest
#35The title is misleading, at least on the IQ claim. The underlying study was observational and did not claim causation.
Medical journals and their associated media summaries are awash with low-certainty studies that get de-nuanced and overhyped. These studies are relatively easy to do - not to denigrate the work put in by the original study authors (it’s not their fault the press sensationalize their work). But for strong causative claims you ideally would have blinded controlled randomized trials. Sometimes such trials are not feasible, but that doesn’t mean you get to claim causation anyway just because the work to prove it is too hard.
Re: Covid infections are causing IQ drops and years of brain aging, studies suggest
#36If this is true, you should expect results to be the same across countries, and the measurable drops in IQ should correlate to infection rates. Five bucks says you won't find that.
In about 5 minutes I found papers on cognitive impairment for post-covid groups vs healthy controls in multiple non-North American countries, including one from Spain [1] where there was a measurably lower correlating IQ estimation for the PCC group than the HC group.
1 - https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9631485/
Do you have a more specific hypothesis of what wouldn't be found elsewhere? Because it looks like you'd be out of $5 from any takers currently.
Re: Covid infections are causing IQ drops and years of brain aging, studies suggest
#37If this is true, you should expect results to be the same across countries, and the measurable drops in IQ should correlate to infection rates. Five bucks says you won't find that.
It's almost impossible to compare IQ tests across countries, because cognition test results are really only valid for people from the cultural context the test was written for.
That's why Raven's progressive matrices were invented. And in spite of it being developed by westerners, East Asian countries tend to score highest on it.
Re: Covid infections are causing IQ drops and years of brain aging, studies suggest
#38Re: Covid infections are causing IQ drops and years of brain aging, studies suggest
#39If this is true, you should expect results to be the same across countries, and the measurable drops in IQ should correlate to infection rates. Five bucks says you won't find that.
You should not assume that the effects of a disease are the same for all populations on the planet.
Re: Covid infections are causing IQ drops and years of brain aging, studies suggest
#40If this is true, you should expect results to be the same across countries, and the measurable drops in IQ should correlate to infection rates. Five bucks says you won't find that.
It's almost impossible to compare IQ tests across countries, because cognition test results are really only valid for people from the cultural context the test was written for.
If true, this seems quite damning for IQ as a metric. If the kilogram varied across countries, we would be in big trouble.