{"id":19045,"date":"2018-08-04T15:23:57","date_gmt":"2018-08-04T05:23:57","guid":{"rendered":"http:\/\/tomgrimshaw.com\/tomsblog\/?p=19045"},"modified":"2024-06-28T10:50:37","modified_gmt":"2024-06-28T00:50:37","slug":"humans-are-getting-dumber-iq-scores-dropping-about-7-points-per-generation-study-finds","status":"publish","type":"post","link":"https:\/\/www.tomgrimshaw.com\/tomsblog\/?p=19045","title":{"rendered":"Humans are Getting Dumber \u2013 IQ Scores Dropping About 7 Points Per Generation, Study Finds"},"content":{"rendered":"<p><a href=\"http:\/\/tomgrimshaw.com\/tomsblog\/wp-content\/uploads\/2018\/08\/Smart_Phones_Stupid_People.png\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter  wp-image-19046\" src=\"http:\/\/tomgrimshaw.com\/tomsblog\/wp-content\/uploads\/2018\/08\/Smart_Phones_Stupid_People-300x181.png\" alt=\"Smart_Phones_Stupid_People\" width=\"776\" height=\"468\" \/><\/a><br \/>\nJuly 27, 2018<br \/>\nA pair of researchers with the Ragnar Frisch Centre for Economic Research in Norway has found that IQ test scores have been slowly dropping over the past several decades. In their paper published in Proceedings of the National Academy of Sciences, Bernt Bratsberg and Ole Rogeberg describe their study and the results they found. They also offer some possible explanations for their findings.<br \/>\nPrior studies have shown that people grew smarter over the first part of last century, as measured by the intelligence quotient\u2014a trend that was dubbed the Flynn effect. Various theories have been proposed to explain this apparent brightening of the human mind, such as better nutrition, health care, education, etc, all factors that might help people grow into smarter adults than they would have otherwise. But, now, according to the researchers in Norway, that trend has ended. Instead of getting smarter, humans have started getting dumber.<br \/>\nThe study by the team consisted of analyzing IQ test results from young men entering Norway\u2019s national service (compulsory military duty) during the years 1970 to 2009. In all, 730,000 test results were accounted for. In studying the data, the researchers found that scores declined by an average of seven points per generation, a clear reversal of test results going back approximately 70 years.<br \/>\nBut it was not all bad news. The researchers also found some differences between family groups, suggesting that some of the decline might be due to environmental factors. But they also suggest that lifestyle changes could account for some of the decline, as well, such as changes in the education system and children reading less and playing video games more. Sadly, other researchers have found similar results. A British team recently found IQ score results falling by 2.5 to 4.3 points every decade since approximately the end of the second world war. And this past December, another group from the U.S. found that children who grew up eating a lot of fish tended to have higher IQs\u2014and they slept better, too, which is another factor involved in adult intelligence levels. Notably, children in many countries in the modern era eat very little fish.<br \/>\nMore information: Bernt Bratsberg et al. Flynn effect and its reversal are both environmentally caused, Proceedings of the National Academy of Sciences (2018). DOI: 10.1073\/pnas.1718793115<br \/>\nAbstract<br \/>\nPopulation intelligence quotients increased throughout the 20th century\u2014a phenomenon known as the Flynn effect\u2014although recent years have seen a slowdown or reversal of this trend in several countries. To distinguish between the large set of proposed explanations, we categorize hypothesized causal factors by whether they accommodate the existence of within-family Flynn effects. Using administrative register data and cognitive ability scores from military conscription data covering three decades of Norwegian birth cohorts (1962\u20131991), we show that the observed Flynn effect, its turning point, and subsequent decline can all be fully recovered from within-family variation. The analysis controls for all factors shared by siblings and finds no evidence for prominent causal hypotheses of the decline implicating genes and environmental factors that vary between, but not within, families.<br \/>\nCommentary from the blog:<br \/>\nGee \u2013 I wonder if this retardation of the human population might have anything to do with irradiating babies while they are in the womb with ultrasound causing DNA damage, mitochondrial dysfunction, chromosomal aberrations, brain damage, reproductive damage, and more.<br \/>\nI wonder if this might have anything to do with mothers using cell phones during pregnancy, exposing their developing babies to massive levels of non-ionizing radiation known to cause genetic damage, brain damage, reproductive damage, and more.<br \/>\nI wonder if this might have anything to do with the medical mafia injecting innocent children with vaccines that contain animal and insect DNA as well as neurotoxic chemicals designed to genetically alter humans and cause brain damage.<br \/>\nI wonder if this might be related to depriving babies of oxygen during birth by stealing their cord blood (1\/3 of their blood supply) and selling it off to the highest bidder \u2014 something that also causes brain damage.<br \/>\nI wonder if this might have anything to do with exposing babies to harmful hospital protocols and toxic drugs during labor, all of which can and do cause extreme pain and trauma for the child, leading to further brain damage.<br \/>\nI wonder if this might be related to the fact that most children today are exposed to massive amounts of manmade, non-ionizing radiation while in utero, and then once they are home, they are further exposed through the use of baby monitors, cell phones, cordless phones, wifi routers, smart meters, smart TVs, microwave ovens, etc., all of which combine to cause further DNA and brain damage<br \/>\nIt\u2019s wakey wakey time people. The medical system is NOT our friend. We are contributing to our own extermination and that of our children by allowing the medical system to enter into our lives during pregnancy and birth.<br \/>\nMaking matters worse is the fact that we are habitually using slick, radiation-emitting devices like cell phones, pretending that this is OK. It is not OK. In fact, if any of our children can reproduce, it will be a miracle. And it will be an even bigger miracle if they can produce children who are not genetically and\/or intellectually compromised.<br \/>\n<a href=\"http:\/\/birthofanewearthblog.com\/humans-are-getting-dumber-iq-scores-dropping-about-7-points-per-generation-study-finds\/\" target=\"_blank\" rel=\"nofollow noopener\">http:\/\/birthofanewearthblog.com\/humans-are-getting-dumber-iq-scores-dropping-about-7-points-per-generation-study-finds\/<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>July 27, 2018 A pair of researchers with the Ragnar Frisch Centre for Economic Research in Norway has found that IQ test scores have been slowly dropping over the past several decades. In their paper published in Proceedings of the National Academy of Sciences, Bernt Bratsberg and Ole Rogeberg describe their study and the results &hellip; <\/p>\n<p class=\"link-more\"><a href=\"https:\/\/www.tomgrimshaw.com\/tomsblog\/?p=19045\" class=\"more-link\">Continue reading<span class=\"screen-reader-text\"> &#8220;Humans are Getting Dumber \u2013 IQ Scores Dropping About 7 Points Per Generation, Study Finds&#8221;<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[5,6],"tags":[],"class_list":["post-19045","post","type-post","status-publish","format-standard","hentry","category-general-interest","category-health-tips"],"_links":{"self":[{"href":"https:\/\/www.tomgrimshaw.com\/tomsblog\/index.php?rest_route=\/wp\/v2\/posts\/19045","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.tomgrimshaw.com\/tomsblog\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.tomgrimshaw.com\/tomsblog\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.tomgrimshaw.com\/tomsblog\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.tomgrimshaw.com\/tomsblog\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=19045"}],"version-history":[{"count":1,"href":"https:\/\/www.tomgrimshaw.com\/tomsblog\/index.php?rest_route=\/wp\/v2\/posts\/19045\/revisions"}],"predecessor-version":[{"id":51263,"href":"https:\/\/www.tomgrimshaw.com\/tomsblog\/index.php?rest_route=\/wp\/v2\/posts\/19045\/revisions\/51263"}],"wp:attachment":[{"href":"https:\/\/www.tomgrimshaw.com\/tomsblog\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=19045"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.tomgrimshaw.com\/tomsblog\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=19045"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.tomgrimshaw.com\/tomsblog\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=19045"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}