Don’t forget the most obvious: diet, both of the pregnant, mother, and the growing child. The link between insufficient nutrition and lowered IQ is well establi

Don’t forget the most obvious: diet, both of the pregnant, mother, and the growing child. The link between insufficient nutrition and lowered IQ is well established. https://www.ncbi.nlm.nih.gov/pubmed/2628311 https://www.ncbi.nlm.nih.gov/pubmed/2628311 https://www.sciencedaily.com/releases/2004/11/041117005027.htm https://www.sciencedaily.com/releases/2004/11/041117005027.h...