RunningNumbers t1_irhffdr wrote
Reply to comment by Happiercalif in TIL A 2017 study found that the introduction of iodized salt in 1924 raised the IQ for the one-quarter of the population most deficient in iodine. by kstinfo
You should look again at the map and then look at topography of the US before you make that assertion about correlation.
Happiercalif t1_irhhfjo wrote
I have.
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