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Episode 2: Breastfeeding - what the science actually says

The Studies Show

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The Effect of Education on IQ

There really isn't anything that we know can boost people's IQ by that much. The results are just sort of implausibly large. And so some, it feels like something must have gone wrong. But here's something more satisfying: They then waited another 10 years and tested them again when they were 16. So this is much more recent results that have come out from the probit trial and effect on IQ there was completely gone. By the time they were 16, there were no differences that were statistically significant between the group that got extra breastfeeding and the group that just got normal amounts of breastfeeding.

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