Adolescence is a word we all understand. It conjures the awkwardness of growth spurts, emotional volatility, first loves, rebellion and the gradual, often painful construction of an adult identity. Society has a language for it, institutions built around it and an accepted understanding that it is a complex transition rather than a simple moment in time. Yet far less recognised is the equally profound transformation that comes later for many women: matrescence, the transition into motherhood. If adolescence is the journey from child to adult, matrescence is the journey from woman to mother, a biological, social and political upheaval that can be just as disorientating, transformative and life-defining.
The biological revolution
What makes matrescence so powerful is that it is not simply about having a baby; it is about becoming someone new. Biologically, the process begins long before birth. During pregnancy, hormone levels surge to extraordinary heights, with oestrogen and progesterone reshaping not only the body but the brain itself. After birth, these hormones fall sharply while oxytocin and prolactin rise, driving bonding, feeding and an intense sensitivity to an infant’s needs. Scientists increasingly understand that the maternal brain is physically altered during this period, with areas linked to vigilance, empathy and emotional processing becoming more active. In plain terms, the body is rewiring itself for care, protection and survival. This is why so many new mothers describe feeling unlike themselves; more anxious, more alert, and more emotionally raw. It is not weakness. It is biology in action.
The emotional and social shift
Yet the changes are not confined to hormones and neural pathways. Socially, matrescence can feel like an earthquake. The woman who existed before motherhood, professional, partner, friend, daughter, independent adult, is suddenly viewed through a new lens. Her identity narrows in the eyes of others and, often, in her own. Much as adolescence forces a young person to ask “Who am I becoming?”, matrescence asks a similar question with greater stakes: “Who am I now that someone depends on me for everything?” Relationships change, sometimes dramatically. Friendships may fall away, careers pause or derail, and even intimate partnerships can be strained under the pressure of sleeplessness, financial anxiety and shifting expectations. For many women, there is joy alongside grief: joy in the new life, grief for the old self.
The political reality
This is where the conversation becomes political. Motherhood is often sentimentalised in public discourse while the realities of matrescence are ignored. In Britain, this transition is profoundly shaped by policy decisions, from maternity care and parental leave to the soaring cost of childcare and the availability of maternal mental health services. A woman’s experience of becoming a mother is not simply private; it is directly affected by the society around her. When support services are underfunded, when employers penalise mothers for caregiving responsibilities and when childcare costs rival a mortgage payment, the burden of matrescence becomes heavier still. What is often presented as a personal challenge is, in truth, a political issue.
Why it matters to everyone
Understanding matrescence matters because it reframes motherhood as a developmental stage rather than a fixed role. Just as we recognise that teenagers need patience, guidance and support, we should recognise that mothers are undergoing a similarly intense transition. The sleeplessness, identity shifts, heightened emotion and sense of dislocation are not failings. They are part of a human process as fundamental as adolescence itself.
The wider human story
Perhaps the most important lesson is that human development does not end at eighteen. We continue to be shaped by our bodies, our relationships and our political environment throughout life. Adolescence and matrescence are mirrors of one another: both are journeys of becoming, marked by uncertainty, growth and the painful birth of a new self. One prepares us for adulthood. The other transforms adulthood entirely.
To find out more about Matrescence check out Lucy Jones’ book.
