How Parenthood Reshapes Our Brains with Dr. Sarah McKay
Aug 21, 2023
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Neuroscientist Dr. Sarah McKay discusses the remarkable ways parenthood reshapes our brains. She explores 'baby brain' and its effects on cognitive function, changes in fathers' brains during parenting, importance of social support, hyper vigilance in parenting, and her book 'Baby Brain' that delves into the neuroscience of pregnancy and motherhood.
Objective cognitive tests do not support claims of cognitive decline in women during pregnancy and early motherhood, instead, feelings of forgetfulness or lack of focus can be attributed to factors such as anxiety, depression, and sleep deprivation.
Neuroscience research highlights significant changes in the brains of mothers and fathers during pregnancy and parenthood, enhancing their abilities to care for and protect their babies, suggesting that both parents are biologically primed for parenting.
Deep dives
Baby Brain: Debunking the Myth of Cognitive Decline
Despite the popular belief in 'baby brain' or 'momnesia', research shows that there is no evidence of cognitive decline in women during pregnancy and early motherhood. While women may subjectively feel forgetful or lack focus, objective cognitive tests do not support these claims. Instead, these feelings can be attributed to factors such as anxiety, depression, and sleep deprivation, which are prevalent during this period. Additionally, attentional shifts towards the baby's well-being and social cues can result in temporary lapses in memory. It is important to recognize that these experiences are normal and not indicative of cognitive dysfunction.
Neurological Changes in Parenthood
Contrary to the common belief that pregnancy and motherhood make women 'more stupid', neuroscience research highlights significant changes in the brains of mothers that prepare them for caregiving. During pregnancy, the social brain networks and reward systems undergo reorganization. These changes enhance a mother's ability to care for and protect her baby, while also increasing her attention to the baby's needs. Interestingly, fathers can also experience structural changes in their brains, with increased engagement in fatherhood leading to dose-dependent alterations. This suggests that both mothers and fathers are biologically primed for parenting.
Seeking Support and Managing Expectations
One key takeaway from the research on pregnancy and parenthood is the importance of social support and shared caregiving. Mother Nature did not intend for parents to navigate these challenges alone. Engaging with support networks, participating in mother's groups, and seeking assistance when needed can alleviate some of the stress associated with parenting. Additionally, it is crucial for expectant parents to understand that the initial state of hyper-vigilance and occasional intrusive thoughts about the baby's safety are normal during the first months of parenthood. Recognizing this can help normalize feelings and prevent unnecessary anxiety.
How does the brain change when you become a parent?
Even if you don’t have children, you likely know friends and family who are parents. A new baby brings a lot of change to your routine, sleep, and lifestyle. But the brain has the amazing ability to adapt in preparation for parenthood. And whether you’re a new parent or simply want to learn what friends and family are going through, understanding the neuroscience can help everyone provide better support for new moms and dads.
Both men and women show myriad biological changes both during pregnancy and after the baby is born. This reshaping of the parental brain reflects the amazing power of neuroplasticity and equips you with new capabilities to match the demands of parenthood. Listen in as Dr. McKay shares the fascinating research about how pregnancy and caring for a new infant physically alters the brain for both moms and dads.
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