Articles on IQ

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Pittsburgh’s air pollution not only led to increased deaths, but it also had other negative effects, from lowered IQ in children to adverse birth outcomes. G Fiume/Getty Images Sport via Getty Images

Pittsburgh’s air pollution estimated to claim 3,000+ lives per year − and EPA rollbacks aren’t helping

A new study linking Pittsburgh’s air pollution to thousands of deaths each year has been published just as the EPA moves to weaken pollution standards.
Donald Trump at an Erie, Pa., rally on Sept. 29, 2024, at which he said Democratic rival Kamala Harris was ‘mentally impaired.’ Dustin Franz/AFP/Getty Images

Yes, calling someone ‘mentally disabled’ causes real harm

Donald Trump’s words about Kamala Harris – she’s a ‘mentally disabled person’ – were widely criticized as coarse and ugly. They are also often found among disparaging descriptions used by others.
Thinking builds neural networks, which is why practice improves performance. Francesco Carta fotografo/Moment via Getty Images

How does the brain think?

Eating right, exercising, playing sports, reading and journaling are just a few of the ways you can keep your brain in top shape.
The Supreme Court issued a decision on June 29, 2023, that ends affirmative action in college admissions. Drew Angerer/Getty Images

A 2003 Supreme Court decision upholding affirmative action planted the seeds of its overturning, as justices then and now thought racism an easily solved problem

The Supreme Court’s decision to eliminate affirmative action programs sent shock waves across the US and is expected to impact racial diversity throughout society.
Experts have voiced concerns about the uptake of a recent Canadian study, in which water fluoridation was associated with slightly lower IQs in children. (Shutterstock)

Does water fluoridation really damage your children’s IQ?

Community water fluoridation is a cost-effective public health measure that can reduce cavities by approximately 25 per cent. Yet some communities are worried about it.
We found students who played chess didn’t show significant improvements in their standardised test scores. from shutterstock.com

Most people think playing chess makes you ‘smarter’, but the evidence isn’t clear on that

Previous studies that explored whether chess improves children’s cognitive abilities have had mixed results. We found playing chess wasn’t linked to better standardised test scores.

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