Scientists have achieved a breakthrough in deciphering the genetics of intelligence. Ironically, they did it by accounting for a key environmental factor.
Breast-feeding boosts children’s IQs by 6 to 7 points over the IQs of kids who weren’t breast-fed, but only if the breast-fed youngsters have inherited a gene variant associated with enhanced chemical processing of mothers’ milk, reports a team led by psychologist Avshalom Caspi of King’s College London.
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