A new study from Monash University has found no evidence that pregnancy or early parenthood causes cognitive decline, challenging the long-held notion of 'baby brain.' The research, published in the journal JAMA Neurology on March 25, 2025, analyzed data from over 1,200 participants, including pregnant women, new parents, and a control group of non-parents.
Lead author Dr. Sasha Davies stated, 'We found no significant differences in cognitive function, such as memory or attention, between pregnant women, new parents, and non-parents.' The study used standardized tests administered over several years, making it one of the largest and most comprehensive investigations into the topic.
The findings contradict popular belief that pregnancy and early motherhood impair cognitive abilities. 'The idea of baby brain may persist due to cultural expectations and the stress of new parenthood, but our data show no objective decline,' Davies added. The study was funded by the Australian Research Council.
