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  1. haidut

    IQ Scores Have Been Dropping For Decades And The Reason Is NOT Genetic

    I mentioned in a few other threads about the decline in intelligence and the reversal of the so-called "Flynn Effect" over the last 3-4 decades. Flynn effect - Wikipedia A few users commented that the drop in IQ (and SAT) scores is due to simply more people taking the tests and thus lowering...
    • haidut
    • Thread
    • decline drop environmental falling flynn effect genes health intelligence iq reversal score
    • Replies: 58
    • Forum: Scientific Studies
  2. haidut

    World IQ Scores Are Declining

    Peat mentioned in one of his recent interviews that the population has been getting dumber as a result of PUFA overexposure. I posted a few studies on declining grip strength, sperm counts, and T levels all of which are good surrogates for general health. However, the most sensitive biomarker of...
  3. haidut

    Intelligence Expected To Decline In Higher IQ And Rise In Lower IQ People

    While the study is observational, it is important because it shows that IQ score is very malleable and depends on the environment more than anything else. I think Ray said in one of his interviews that he thinks the population of Western countries is getting progressively dumber, and he...
    • haidut
    • Thread
    • decline diet environmental flynn effect intelligence iq score west
    • Replies: 42
    • Forum: Scientific Studies
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