The importance of breastfeeding and its relation to the intelligence
All these results come with some statistical error. For this sample, the measurement of IQ was done by researchers who knew whether a child was in the breastfeeding-encouraged treatment group.
Because if it did, it would be really obvious in the data and in your everyday experience. Few mothers maintained predominant breastfeeding for 4 months or more table 1. In the linear regression models, we graphically tested the normality of residuals and homoscedasticity homogeneity of variance. The key to this study is that the authors analyze the same sample of kids in a bunch of different ways. Table 1 shows the wide variability in maternal education. The researchers only analysed data from children who were born at term that is, were not premature and whose families had provided all required information when they were aged nine months. However, this has not yet been proven. In Denmark, Mortensen and colleagues 5 noted that breastfeeding duration was positively associated with performance on the Wechsler Adult Intelligence Scale mean age 27 years , while Richards and colleagues 6 reported a positive association with performance in the National Adult Reading Test in participants aged 53 years in the British cohort. So the authors of this study used an approach known as propensity score matching. Research on Benefits of Breastfeeding Breastfeeding has been recognized for its ability to provide infants with essential nutrients to help with growth and development. Research has shown there are many benefits associated with breastfeeding, such as building a healthy gut microbiota and increasing the bond between mother and child. There were differences between the family circumstances of the breastfed and never-breastfed babies.
This suggests that something about the family, not the breastfeeding, is impacting the likelihood of a child becoming obese. In conclusion, there is no compelling evidence for smarty-boobs. IQ tests are also reported as being better indicators of social background, confidence, cultural biases and so on.
Breastfeeding and brain development
If you believe studies that just compare kids who are breastfed to those who are not, you find that it does. They enrolled over 11, babies, and collected information about them from birth up to the age of five. Some studies have found an effect, while others have not. Advertisement In a commentary that accompanies the study, Dr. Where did the story come from? One problem with assessing the effects of breastfeeding is that, in Western countries, mothers who breastfeed tend to have higher levels of education, be middle or upper class, and are less likely to smoke or live in households where there is smoking as was the case with this study. Four psychologists who were unaware of participant feeding history administered the tests. These researchers have continued to follow the children in the trial through the age of seven. The current analysis was looking at whether having been breastfed affected children's cognitive abilities and other development at ages three and five. There is a lot of stigma and controversy around breastfeeding. This may be a logical and common method, but it glosses over the ongoing and complex controversy of the validity of IQ tests and study of intelligence in general.
We used G-computation 15 to estimate the direct effect of breastfeeding on income at 30 years, and the indirect effect that was mediated through IQ. Breastfeeding is complicated enough already As stated, there are many potential confounding variables, alternative explanations, influential factors and further analyses that need to be looked into before we can definitely say breastfeeding leads to greater intelligence and success.
Duration of breastfeeding and intelligence
For this sample, the measurement of IQ was done by researchers who knew whether a child was in the breastfeeding-encouraged treatment group. What were the basic results? This study did not look at all aspects of baby and child health and wellbeing. Women who breastfeed may differ from women who do not in factors such as parental education and socioeconomic status. Bolstering this, studies that compare siblings who are breastfed to those who are not show no differences in obesity. In New Zealand, breastfeeding duration was positively associated with performance in secondary school tests in students aged 18 years. They enrolled over 11, babies, and collected information about them from birth up to the age of five. The overall thrust of this is that the research may have noble aims, interesting results and good intentions, but you can easily see how it would be spun out into more ways to fuel personal views and ideals. We aimed to assess the associations between infant feeding and IQ, educational attainment, and income in participants aged 30 years in a large population-based birth cohort, in a setting where no strong social patterning of breastfeeding exists.
About 8, babies had complete information at this age and were successfully followed up to age five. But we can say that nothing compelling in the data supports a significant link.
Breastfeeding and intelligence; two things that people invariably have strong views on, clearly linked and proven by science. We see, again and again, aggressive headlines that often overstate the claims of the articles they report on.
Because breastfeeding has been postulated to affect IQ in early life, we treated educational attainment as a post-confounder in the mediation analyses.
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