huunhuurtuu t1_irlcjqp wrote
Reply to comment by Dalmah 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
Our brains are smaller too tho. Our jaws are also getting smaller and weaker. Kinda like wolf to dog transition. We are kinda domesticating ourselves and I doubt we are actually smarter now.
Dalmah t1_irlcugk wrote
The brain being smaller doesn't neccesarily mean we are getting stupider, the correlation between brain size and intelligence is weak.
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