VOLUME LXXIII | JAN 2023

Matrescence: lifetime impact of motherhood on cognition and the brain

Motherhood is like a turbulent storm that triggers immense changes both inside and outside. From the rollercoaster of hormones during pregnancy, birth, and breastfeeding to the complete realignment of the physical, emotional, and social landscape, it’s a whirlwind unlike any other. In sync with these adaptations, the maternal brain goes through an incredible makeover, evolving its structure and function, and even reshaping cognition to adapt to the demands of nurturing a child. Matrescence is not just about becoming a mother, it’s an extraordinary journey that alters how your brain works! Scientists have discovered that during childbirth and beyond, the brain rewires itself to support optimal caregiving abilities. It’s like your brain is upgrading its software to nurture a little human! This fascinating research invites us to delve deeper into understanding how motherhood transforms our minds and opens up endless possibilities for further exploration.

Marc Harper

Marc is a Canadian exercise physiologist in St. John’s, linking fitness to sharper thinking. He writes about real-world ways to stay strong and sharp, inspired by Newfoundland’s tough, no-frills lifestyle.

The hormonal fluctuations of pregnancy, birth, and lactation initiate rapid and extreme physiological transformations that are unparalleled across the lifespan. These biological changes are accompanied by a dynamic restructuring of the physical, emotional, and social environment. In concert with these adaptations, the maternal brain undergoes significant structural and functional neuroplasticity [1,2] as well as cognitive adaptations [3] across the peripartum period (see Glossary). The brain is transformed, in preparation for and in response to, a developing child.
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