Many people believe IQ is not a good measure of intelligence.
BUT, even if that's true, we should still worry when we see things that lower IQ!
theguardian.com/environment/20…
But we DON'T think that, do we?! That would be kind of nuts!!
Even if the level doesn't matter much, the CHANGE can still matter a lot!
npr.org/sections/healt…
journals.sagepub.com/doi/abs/10.117…
IQ changes are a good way to identify some of the things that hurt people's brains.
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