Breastfeeding affects intelligence, education and income of adults in the future, according to evidence from a long-term study in Brazil. Those who were breastfed longer grew up with higher IQs and better-paid jobs.
A prospective birth cohort study from Brazil first enrolled almost 6,000 newborns three decades ago; from 2012 to 2013 nearly 3,500 of the participants were available for further research with interviews and IQ tests to find out the “association between breastfeeding and intelligence, educational attainment, and income at 30 years of age.”
The analysis, published in the Lancet Global Health magazine, showed that those who were breastfed for 12 months or more had higher IQ scores (with a difference of 3.76 points), more years of education, and higher monthly income than participants who were breastfed for less than a month.
According to Brazilian researchers, some evidence of similar positive effects of breastfeeding has been available before, but it has generally come from high-income countries. There was a question of whether the effects observed in other studies were a consequence of breastfeeding itself, or were associated with the status of the researched families. Full story...
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A prospective birth cohort study from Brazil first enrolled almost 6,000 newborns three decades ago; from 2012 to 2013 nearly 3,500 of the participants were available for further research with interviews and IQ tests to find out the “association between breastfeeding and intelligence, educational attainment, and income at 30 years of age.”
The analysis, published in the Lancet Global Health magazine, showed that those who were breastfed for 12 months or more had higher IQ scores (with a difference of 3.76 points), more years of education, and higher monthly income than participants who were breastfed for less than a month.
According to Brazilian researchers, some evidence of similar positive effects of breastfeeding has been available before, but it has generally come from high-income countries. There was a question of whether the effects observed in other studies were a consequence of breastfeeding itself, or were associated with the status of the researched families. Full story...
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