How fatherhood may reshape the male brain and body and why it matters for ECEC

For decades, conversations about early childhood development have focused largely on mothers, their hormones, attachment and role in shaping a child’s earliest experiences.

Emerging research is now presenting a broader picture. Fatherhood may also trigger significant biological and neurological changes, helping prepare men for caregiving in ways once thought to be unique to mothers.

The findings challenge long-held assumptions about gender and parenting, while offering useful insights for the early childhood education and care (ECEC) sector about how fathers and father figures can be more intentionally engaged.

Parenting may change fathers physically as well as emotionally

Parenthood often brings emotional, social and practical change. Increasingly, studies suggest it may also bring measurable physical change.

Researchers have found that some men experience shifts in hormone levels after becoming fathers. Testosterone, commonly associated with competitiveness and risk-taking, may decline during early parenthood.

At the same time, hormones linked to bonding and caregiving, including oxytocin and prolactin, may increase.

These changes have been associated with:

• increased nurturing behaviour
• stronger emotional attunement
• greater responsiveness to infant cues
• reduced aggression and impulsive risk-taking
• deeper parent–child connection.

Rather than signalling loss, researchers suggest these hormonal shifts may reflect adaptation to a caregiving role.

The father brain may also adapt

Neuroscientists have also identified changes in the brains of fathers, particularly those actively involved in day-to-day care.

Studies suggest areas linked to empathy, vigilance, emotional regulation and planning may become more responsive following the arrival of a child.

One of the most significant findings is that fathers who spend more time in hands-on caregiving often show stronger activation in the brain’s parental caregiving networks.

This suggests caregiving is not only instinctive, but also shaped through experience.

The more fathers engage in feeding, comforting, playing and responding, the more those neural pathways may strengthen.

Why children benefit

Children benefit from secure, responsive relationships with multiple trusted adults.

Research has linked positive father involvement with a range of developmental outcomes, including:

• stronger emotional wellbeing
• increased confidence and resilience
• positive language development
• improved social competence
• broader learning and play experiences.

These benefits are not limited to biological fathers. They may also extend to stepfathers, grandfathers, foster carers and other father figures who play a consistent caregiving role.

What this means for ECEC services

For educators and service leaders, the research reinforces the importance of father-inclusive practice.

Many services have traditionally communicated more directly with mothers, often unintentionally. Contemporary family engagement requires a broader approach that recognises all caregivers as capable and important partners.

This may include:

• welcoming fathers into enrolment and orientation processes
• using inclusive language in written communication
• inviting fathers to events, learning conversations and transitions
• acknowledging diverse family structures
• ensuring updates are shared with all caregivers.

When fathers feel seen, included and respected, engagement with the service often deepens.

A broader understanding of caregiving

The science is increasingly clear: fatherhood is not simply a social identity. For many men, it may also involve biological and neurological adaptation.

Bodies and brains can respond in ways that support nurturing, protection and connection.

When services intentionally include fathers and father figures, they do more than support one parent. They strengthen family wellbeing, enrich children’s development and build more inclusive learning communities.

Source: BBC Future (2026), “How fatherhood rewires the male brain and body for childcare”, 17 April 2026.