Today’s Solutions: December 15, 2025

People who had been breastfed are more intelligent, spent longer at school, and earn more than those who had not been. The longer they were breastfed as a baby, the better they were doing. Those are the results of a major study from Brazil, studying participants over three decades. The study, of which the results are now published in The Lancet Global Health Journal, took account of socio-economic factors, such as family income at birth, parental schooling and maternal age. It appeared all the breastfed babies now have a higher IQ and higher earnings. Children who had been breastfed for 12 months had an IQ that was four points higher than those breastfed for less than a month, had nearly a year’s more schooling, and earned around $100 a month more.

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