200 years is not long time ago, the changes may be subtle. I’m not aware of any research in this field, but mass education improves our cognitive abilities and

200 years is not long time ago, the changes may be subtle. I’m not aware of any research in this field, but mass education improves our cognitive abilities and I won’t be surprised to see if natural selection favors those who respond to education better. Our species developed new ways to pass „genetic“ information to next generations beyond DNA. We may be almost the same as ancient human right after birth, but we acquire and encode in our behavior and body much more extra information as we grow. Our biome adjusts to our food habits, our hormonal system adapts to our level of stress, our immune system gets upgrades via vaccines etc etc. And all of this is controlled by our intelligence.