Indeed, birth complications (Brimacombe et al., 2007) due to low OXT levels and stressful-depressive mother care have long been associated with autism (see Uvnäs-Moberg et al., 2015 for an excellent review on the short- and long-term effects of breastfeeding and skin-to-skin contact between mother and infant, explained via OXT release). Here, OXT is linked to autism.