Second pregnancy changes the brain differently from the first, study suggests
A study published in Nature Communications reveals that a second pregnancy induces unique structural changes in a woman's brain compared to the first. These changes appear to shift focus toward sensory cues and attention, potentially aiding in the care of multiple children.
Why it matters
Understanding neurological adaptations during pregnancy provides insight into maternal health and the biological basis of parenting.
A woman's brain changes in very different ways during her second pregnancy compared with her first, helping her adjust to the demands of raising a larger family.The discovery comes from a study by researchers at Amsterdam University Medical Center, published in the journal Nature Communications. Scientists already knew that a first pregnancy causes structural changes in the brain. This new study shows that later pregnancies do not simply repeat those changes. Instead, each pregnancy leaves its own unique mark on the mother's brain.The team followed 110 women, taking brain scans before conception and again after childbirth. Some women were pregnant for the first time, some were expecting their second child, and a control group remained childless.
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