As parents, we often marvel at how much our children grow and change. What is less widely recognised is that becoming a parent changes us too, right down to our brains.
For many years, research focused on how pregnancy and motherhood reshape the brain. More recently, research suggests that first time fathers also experience remarkable brain changes as they transition into parenthood. This growing field of research has become known as 'Dad Brain.'
One of the most surprising findings is that first time fathers show small reductions in grey matter in brain regions involved in understanding other people's thoughts and emotions. While this may sound concerning, research suggests these changes reflect the brain's natural process of refining neural connections. Rather than representing a loss of function, this remodelling appears to make the brain more specialised and efficient, strengthening the networks most important for caring for a child and the journey of parenthood.
Clinical psychologist and neuroscientist Dr. Darby Saxbe (https://www.darbysaxbe.com/) has been a leading researcher in this field. Her work suggests that fathers' brains adapt in response to caregiving, with these changes becoming stronger the more actively fathers are involved in raising their children. In her book Dad Brain: The Science of How Fatherhood Changes Men, Dr. Saxbe highlights that fatherhood is not simply a social role, it is also a biological and neurological transformation.
A key parenting skill is mentalising, the ability to understand another person's thoughts, feelings and intentions. Every day, parents use this skill to work out why their child is upset, what they need and how best to respond. Research suggests that the brain changes associated with Dad Brain help fathers become increasingly efficient at these important parenting skills over time.
Dr. Saxbe explains that the transition to first-time fatherhood represents one of the most significant periods of brain plasticity during adulthood. Like the rapid brain development seen in childhood and adolescence, becoming a parent prompts the brain to reorganise itself in ways that support caregiving, emotional connection and learning.
Encouragingly, research shows that parenting skills are developed, not simply inherited. Everyday moments, reading a bedtime story, playing in the backyard, school drop offs or offering a comforting cuddle, help strengthen the brain networks that support empathy, patience and responsive parenting.
Dr. Saxbe also suggests these benefits may extend beyond family life, with the empathy, flexibility and emotional understanding developed through parenting supporting stronger workplace relationships, leadership and teamwork.
Ultimately, Dad Brain offers an encouraging message; that great fathering is not about being perfect but about being emotionally present, dependable and willing to grow alongside your child. Notably it suggests that every caring interaction shapes not only your child's developing brain, but your own as well.
David Mander
Psychologist