Understanding Defence Mechanisms: How We Learned to Survive

Many of the behaviours we struggle with as adults did not begin as problems. They began as solutions.

As children, we are completely dependent on the adults around us. We rely on them not just for food and shelter, but for emotional safety, connection and protection. When that environment feels unstable, stressful, rejecting or overwhelming, we do what any human being would do. We adapt.

These adaptations are what we call defence mechanisms.

They are not signs that something is wrong with you. They are signs that something once felt unsafe.

What Is a Defence Mechanism?

A defence mechanism is an automatic way of protecting ourselves from emotional pain, vulnerability or overwhelm.

At some point in childhood, a particular response helped you cope. It may have reduced anxiety, prevented rejection, or allowed you to stay connected to someone you depended on. In that moment, it was intelligent. It was necessary.

The difficulty is that what once protected you can quietly become a fixed pattern.

What was meant to be a temporary response to stress can turn into a long-term way of being. Instead of something you move in and out of, it becomes part of your personality. And then you may find yourself reacting in ways that no longer serve your adult life: in relationships, at work, or within yourself.

It can feel confusing. Why do I keep doing this? Why can I not just stop?

Because this pattern was wired in at a time when it felt linked to survival. When the nervous system associates a behaviour with staying safe, it does not let go easily.

Why We Do Not Simply Grow Out of It

When a child experiences emotional stress, whether that is rejection, criticism, unpredictability, absence, or even subtle emotional unavailability, the body and brain adjust.

These adjustments might help in the short term:

• Shutting down feelings so they do not overwhelm
• Becoming hyper-attuned to others to prevent conflict
• Avoiding closeness to reduce the risk of being hurt
• Being "perfect" to secure approval

In childhood, these responses can reduce anxiety and preserve connection. They make sense in that context.

But when we are no longer in that environment, the pattern may still activate automatically. The brain recognises something that resembles the original threat, even if it is only vaguely similar, and the old defence is triggered.

This is why you may feel you are overreacting to something small. Your body is not responding to the present moment alone. It is responding to the past.

Trauma, whether big or subtle, can narrow our capacity to stay present. Instead of responding freely, we react from old programming. If you recognise this, you may also want to read about Complex PTSD (C-PTSD), which looks at how prolonged stress shapes the nervous system over time.

The work of therapy is not about blaming these adaptations. It is about gently bringing them into awareness, so they no longer run the show.

Common Defence Mechanisms and How They Show Up

Here are some of the more common ways these protective patterns can appear in adult life.

1. Withdrawal

Pulling away emotionally or physically when things feel vulnerable.

How it may look:

• Going quiet during conflict
• Avoiding difficult conversations
• Losing interest or shutting down when closeness increases
• Feeling detached instead of expressing hurt

Originally, this may have reduced the pain of rejection or abandonment.

2. People-Pleasing

Prioritising others' needs to maintain harmony or secure approval.

How it may look:

• Saying yes when you mean no
• Feeling responsible for others' emotions
• Anxiety at the thought of disappointing someone
• Losing touch with your own preferences

As a child, staying agreeable may have preserved connection or reduced conflict. This pattern is something many women carry into midlife, where it often intensifies before it is finally questioned.

3. Perfectionism

Striving to be flawless to feel safe or valued.

How it may look:

• Harsh self-criticism
• Fear of making mistakes
• Overworking
• Difficulty relaxing

This may once have brought praise, attention or a sense of control in chaos.

4. Anger as Protection

Using irritation, criticism or control to guard against vulnerability.

How it may look:

• Snapping when feeling hurt
• Blaming others quickly
• Needing to be right
• Feeling uncomfortable with softer emotions like sadness or fear

Anger can feel safer than feeling small, rejected or powerless.

5. Emotional Numbing

Disconnecting from feelings altogether.

How it may look:

• Feeling flat or "fine" most of the time
• Struggling to identify emotions
• Turning to food, alcohol, scrolling or busyness to avoid inner discomfort
• Avoiding deep reflection

At one time, not feeling may have been the only way to cope.

6. Hyper-Independence

Refusing help or avoiding reliance on others.

How it may look:

• "I will do it myself"
• Difficulty asking for support
• Discomfort receiving care
• Pride in not needing anyone

If depending on someone once led to disappointment, independence can feel safer.

From Survival to Freedom

There is nothing shameful about these patterns. They were intelligent adaptations to the environment you were in.

The problem is not that you developed them. The problem is that they became fixed.

When we are unconsciously driven by old survival responses, we lose flexibility. We become constrained to certain predictable reactions rather than having choice.

Healing is not about ripping these defences away. That would feel unsafe to the nervous system.

It is about creating enough inner safety that the body no longer needs them in the same way.

When you begin to understand that your "difficult" behaviours once kept you safe, something softens. Self-judgement gives way to curiosity. And from that place, change becomes possible.

The aim is not to become someone new. It is to gently release what you no longer need, so you can respond to life from the present moment with clarity, flexibility and authenticity.

This process does not have to be forced. Like the philosophy of Kaizen, real change often happens through small, consistent moments of awareness rather than dramatic breakthroughs.

Returning to the Present

The aim of this work is not to analyse your past endlessly. It is to increase your capacity to be here, now, with flexibility and choice.

When you are no longer automatically driven by old survival strategies, you can respond rather than react. You can feel vulnerability without collapsing or defending against it. You can stay connected to yourself and to others.

The defences do not need to be fought.

They need to be understood.

And when they are understood gently, compassionately, and through the wisdom of the body, they no longer have to run your life.

Breathwork and somatic practices play an important role here. How we breathe reflects how we live, and by gently changing the breath, we also change how safe the nervous system feels in the present moment. This creates the conditions for old patterns to soften naturally.

Frequently Asked Questions

How do I know if I am using a defence mechanism?

The clearest sign is a reaction that feels automatic and out of proportion to what is happening. If you notice yourself withdrawing, people-pleasing, snapping or shutting down in ways that feel familiar but unhelpful, there is a good chance a protective pattern is at work. Bringing curiosity rather than judgement to these moments is the first step.

Can defence mechanisms be changed?

Yes. Defence mechanisms are learned responses, which means they can be gently unlearned over time. The key is creating enough safety for the nervous system to let go of old strategies. This happens through awareness, compassionate inquiry, somatic practices and consistent support.

Is it safe to work on defence mechanisms without professional support?

Self-awareness is always valuable, and noticing your patterns is a meaningful step. However, because these defences are often connected to early emotional pain, working with a trained therapist provides a safe, regulated space for deeper exploration. This is especially important if you recognise signs of complex trauma.

What is the difference between a healthy coping strategy and a defence mechanism?

A healthy coping strategy is something you choose consciously. You are aware you are using it, and it genuinely helps you manage stress. A defence mechanism tends to be automatic and unconscious. It may have helped once, but in its fixed form, it often creates more difficulty than it resolves.

Do defence mechanisms affect relationships?

Very much so. Withdrawal can make a partner feel shut out. People-pleasing can lead to resentment. Hyper-independence can prevent real intimacy. When we understand our own patterns, and how they interact with the patterns of those closest to us, relationships can begin to shift toward greater honesty and connection.

Beginning the Journey

If you recognise yourself in any of these patterns, that recognition itself is meaningful. It is the beginning of a different relationship with yourself.

You do not have to navigate this alone. Through 1:1 therapeutic sessions, breathwork, and courses and events, I support women who are ready to understand their patterns, reconnect to their bodies, and begin healing the deeper layers that have kept them stuck.

The defences you built were once necessary. Honouring that is where healing begins.