Extended breastfeeding linked to higher IQ and income

Not only does breastfeeding have clear short-term benefits, such as protection from infectious diseases and a reduction in mortality, it's also been shown to be associated with an increase in intelligence. Prior studies have shown an increase of up to 7.5 IQ points in elementary age children who were breastfed, as well as an increase in verbal, performance and comprehensive IQ in adults. The latest addition to this perspective is a long-term study of infants born in Pelotas, Brazil, in 1982. The study interviewed 5,914 new mothers about their plans for breastfeeding and then followed up to see how they did.