What Is Matrescence? The Science Behind Why You Don’t Feel Like Yourself

This article is part of the Nella Vosk Breastfeeding and Postpartum Hub — your resource for evidence-informed support through every stage of early motherhood.

There’s a moment somewhere in early motherhood where you catch yourself mid-sentence and think: “where did that come from?”

It’s not the sleep deprivation, though that’s real. It’s not the hormones, though those are real too. It’s something quieter and harder to name. A sense that the person you were before your baby arrived has been replaced by someone you recognise but don’t quite know yet.

If you’ve felt that, there is a word for it. And more importantly, there is a science to it — one that most women never hear.

You are not losing yourself. You are going through matrescence.

Matrescence is the process of becoming a mother. The word was coined by anthropologist Dana Raphael in 1973, and it describes the profound physical, psychological, neurological, and hormonal transformation that occurs when a woman has a child.

It sounds like adolescence. That’s deliberate. Because just as adolescence marks a fundamental biological and identity shift — not just a phase, not just mood swings, but a complete rewiring of the body and brain — matrescence does the same thing.

The difference is that we talk about adolescence. We prepare for it. We have names for what’s happening and a rough map of where it leads. Matrescence? Most mothers go through it without anyone ever explaining that it’s real, that it has a name, and that there is solid science behind everything they’re experiencing.

Here’s something I see again and again in my work with postpartum families. A mother is worried about her milk supply. She feels like she’s not producing enough. She’s done everything ‘right’ and still the feeds feel insufficient. She is exhausted, a little lost, and starting to wonder if something is wrong with her.

Often, nothing is wrong with her. But her body is depleted, and a depleted body will always prioritise keeping you alive over producing milk. That’s not failure. That’s biology doing exactly what it evolved to do.

Iron deficiency is one of the most common postpartum nutrient gaps, and low iron directly affects milk production because iron is required for the cellular energy needed to synthesise breast milk. Omega-3 deficiency affects both milk quality and maternal mood. Zinc and iodine are critical for both supply and infant brain development.

When I formulated the Nourish Mama range, I was thinking about this directly. Not just about galactagogues — the foods traditionally used to support milk production — but about the full nutritional picture of a postpartum body. What does a woman who has just grown another human actually need? That question led to every ingredient decision. You can read more about how each ingredient was chosen on the product page.

Part of the reason matrescence is so disorienting is that our culture treats the birth of a baby as the main event, with the mother as a supporting character in her own story. The focus shifts entirely to the baby — their weight, their sleep, their milestones. The mother’s experience becomes background noise.

She is expected to bounce back. To feel joy, consistently and visibly. To be grateful.

And she often does feel joy. But she also feels grief for the person she was before. She feels the disorientation of a brain and body that have been fundamentally reorganised without her consent. She feels the particular exhaustion of doing enormous invisible work — hormonal, neurological, nutritional, emotional — with no language to explain it.

Giving it a name matters. Not so she can put it in a box and file it away, but so she can stop thinking something is wrong with her.

There is no shortcut through matrescence. It is a process, not a problem to be solved. But there are things that genuinely help.

Nutrition that actually accounts for where you are

Not general healthy eating advice. Specific, postpartum-aware nutrition that addresses the deficits your body actually has right now. Iron. Omega-3s. Zinc. Iodine. B vitamins. The galactagogue foods that support milk production. Adequate protein for tissue repair. Healthy fats for both your brain and your baby’s.

The reason this matters for matrescence specifically is that many of the symptoms we associate with the identity disorientation of new motherhood — the flat mood, the brain fog, the sense of being slightly outside yourself — overlap directly with the symptoms of postpartum nutrient depletion. You cannot think clearly, feel regulated, or find your new self on an empty tank.

Permission to take longer than you think

The research on matrescence suggests the process takes years, not weeks. The brain changes documented in pregnancy studies were still present two years postpartum. The hormonal recalibration continues through the breastfeeding period and beyond.

You are not supposed to have ‘bounced back’ by six weeks, or by six months. The concept of bouncing back misunderstands what has happened to you. You didn’t temporarily go somewhere else. You changed.

Someone to tell you it’s real

One of the most consistent things I hear from the families I work with is that simply having a name for their experience — and understanding that it has a biological basis rather than being a sign of weakness or struggle — shifts something. You stop fighting what’s happening. You start working with it instead.

You are not failing at motherhood. You are going through a biological transformation that our culture doesn’t have enough language for. The fact that it’s hard doesn’t mean you’re doing it wrong.

I came to postpartum nutrition through my own experience — struggling with my milk supply, feeling depleted in ways I couldn’t explain, not recognising myself in the mirror at three months postpartum and not having any framework for why.

When I studied to become a Certified Postpartum Nutrition Professional, the piece that shifted everything for me was understanding that what I had experienced wasn’t weakness or inadequacy. It was a body that had done an enormous thing and needed real, specific support to rebuild.

Everything I make through Nourish Mama is grounded in that understanding. Not just what ingredients are in the products, but why those specific ingredients, in those amounts, for a body at this specific stage of its life. That matters to me because it mattered to me when nobody was explaining it.

If you’re navigating the postpartum period and would like support with your nutrition and milk supply, the Nourish Mama Postpartum Recovey Range was made for exactly where you are right now.

Kelly x