What is matrescence? How motherhood changes your brain and identity

We are all familiar with adolescence – the phase where teenagers undergo profound hormonal, emotional and physical shifts.

A similar seismic shift happens in motherhood, and it has a name: matrescence.

Coined by anthropologist Dana Raphael in the 1970s, the term describes the process of becoming a mother – the sweeping physical, psychological and emotional changes that follow the birth of a child. Ask any mother and she’ll tell you: The post-partum identity shift is immense.

Naming it matters, because without it, we risk dismissing or downplaying what women experience. This transformative period has been reduced to “baby blues” or brushed off as “mum brain”, when in reality, it’s a full-scale hormonal recalibration, accompanied by real, structural changes in the brain.

Stop calling it mum brain

Research shows that after childbirth, women experience a temporary reduction in grey matter – changes that closely mirror what happens in the adolescent brain during puberty. This can last for several years.

Scientists believe this “rewiring” supports heightened empathy, strengthens parent-child bonding, and may even increase pain tolerance in mothers. One study found that during a first pregnancy, grey matter volume can decrease by up to 4.9 per cent, with changes observed across 94 per cent of the brain, particularly in areas linked to social cognition.

In other words, this isn’t forgetfulness or mental fog.

It’s adaptation. And recognising that shift is the first step towards meeting mothers with the understanding and support that they deserve.