Happy? Sad? Breastfeeding May Affect Babies' Awareness of Social Cues

The researchers found that among the 44 babies in the study who had a certain genotype of the gene CD38, called the CC genotype, those who had been exclusively breastfed for the longest time tended to look longer at happy eyes, and for less time at angry eyes, compared with infants who had been exclusively breastfed for a shorter time. Most mothers there are entitled to a one-year-long paid maternity leave, making it easier for moms to breastfeed if they choose to, said study author Tobias Gross