US EditionStudies show a decline in human intelligence: Report
- Researchers from the University of Texas concluded that the "mere presence" of smartphones reduces our "available cognitive capacity."
- Analysis by The New York Times revealed that about a million more US adults reported serious cognitive problems in 2023 than before the pandemic.
- The Financial Times noted that evidence suggests cognitive skills have been declining since the early 2010s, coinciding with our changing relationship with information.
- Researchers at the University of Michigan found that people are struggling more with concentration and reasoning, worsened during the pandemic.
27 Articles
27 Articles
Our new study indicates maternal exposure to relatively low fluoride levels may affect intelligence in children
Alena Matrosova/ShutterstockFluoride occurs naturally in drinking water, especially well water, but the concentrations are generally low in public water supplies. In some countries, such as the US, Canada, UK, Australia and Ireland, fluoride is commonly added to the public water supply at around 0.7mg per litre to prevent tooth decay. The World Health Organization guideline for fluoride in drinking water is 1.5mg per litre. Given the concern tha…
Study: People are getting dumber
Human intellectual abilities such as reasoning and problem-solving are diminishing, possibly due to increased exposure to visual media, the Financial Times (FT) has reported. Human intelligence appeared to peak in the early 2010s and has been in decline since, the FT added, citing PISA, an international benchmarking test for 15-year-olds that includes reading, mathematics and science, and adult cognitive evaluations. The reported trend comes ami…
Have we reached 'peak cognition'?
"Since the intelligence test was invented more than 100 years ago, our IQ scores have been steadily increasing," said BBC Future. But, in recent years, that trend has been slowing or even reversing – suggesting that we may well have "passed the summit of human intellectual potential".And the outlook seems similar for human "cognitive capacity" – our ability to apply our intelligence to real-world uses. There has been "remarkably little" long-run…
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