Pregnancy triggers profound changes throughout a woman's body, including her brain, as it adapts to nurture the newborn. A landmark study published in December 2016 in the journal Nature Neuroscience used brain scans to track these transformations in women before and after childbirth.
Researchers from the University of Barcelona analyzed scans from 25 first-time mothers, 19 first-time fathers, 19 men, and 20 childless women over 5 years and 4 months. They found reductions in gray matter in areas linked to social cognition and the hippocampus, which handles memory. Importantly, these changes do not impair cognitive function. Instead, they appear to optimize the brain for maternal attachment to the child, with effects persisting up to two years postpartum.
