If you have recently discovered the language of attachment theory — anxious, avoidant, disorganised, secure — you may be wondering the same thing that most people ask after their initial recognition: is mine permanent?
The short answer is no. Attachment styles are not fixed traits like eye colour. They are learned strategies — deeply ingrained, neurologically embedded, often extraordinarily persistent — but learned nonetheless. And what is learned can, under the right conditions, be updated.
Earned security is not the natural security of someone who never needed to question whether love was safe. It is the hard-won security of someone who did the work to learn that it can be.
How Attachment Styles Form
Attachment patterns develop in the first years of life through the repeated experience of how caregivers respond to the child's needs for comfort and security. John Bowlby described the internal working models children form — mental representations of the self, others, and relationships — as the result of thousands of early interactions, not a single event.
These internal working models are adaptive at the time of their formation. The avoidant child who learned that expressing needs produced rejection learns to self-contain because that keeps the attachment relationship functional. The anxious child who learned that the caregiver was sometimes present and sometimes not learns to amplify distress and seek reassurance constantly. The problem is not the strategy. The problem is that the strategy becomes generalised — applied to all relationships, regardless of whether the new relationship actually warrants the same approach.
Earned Secure Attachment: What the Research Shows
Researchers distinguish between two types of secure attachment in adulthood. Continuous security belongs to people who have had consistently responsive caregiving throughout development. Earned security belongs to people who began with insecure attachment but have, through significant relational and personal experiences, moved to a secure functioning state.
Research by Mary Main and her colleagues, using the Adult Attachment Interview, consistently shows that adults can score as securely attached even when their childhood experiences were significantly difficult or harmful — as long as they have been able to process and make coherent sense of those experiences. The distinguishing feature of earned security is not that the person had good experiences. It is that they have developed a coherent, reflective narrative about the experiences they did have.
What Changes — and What Doesn't
It is important to be honest about the nature of this change.
What changes: the automatic reactivity of the attachment system; the degree to which old patterns hijack present-moment experience; the capacity for reflective functioning — understanding your own and others' mental states; the emotional tolerance for intimacy, separateness, and uncertainty; and the quality of care and compassion you extend toward your own inner experience.
What does not fully change: the fundamental sensitivity of the attachment system — people who developed anxious or disorganised attachment often remain more sensitive to relational cues than people who had secure childhoods; the history — integration is not erasure; and the likelihood of reactivation under significant stress — in acute crisis, older patterns often re-emerge, even in people who have done substantial work.
What Produces Genuine Change
A sustained secure relational experience. The most powerful single factor. A long-term relationship — romantic, close friendship, mentorship, or therapeutic — that is consistently safe, responsive, and honest creates the experiential conditions under which the nervous system can update its expectations. The nervous system requires accumulated evidence, over time, to genuinely revise a deeply held expectation.
Therapy, specifically. The therapeutic relationship is itself an attachment relationship — and when it is a consistently attuned, boundaried, and honest one, it becomes one of the primary vehicles for earned security. This is not an accidental feature of therapy; it is, in many approaches, the central mechanism of change.
Reflective functioning. The capacity to think about your own and others' mental states — to notice when you are operating from an old blueprint rather than the present reality — is both a correlate and a product of earned security.
Time. Attachment change is not a workshop. It is not a reframe. It is the slow accumulation of evidence that the world can be different from how it taught you to expect.
The goal of attachment work in therapy is not to produce a person who never feels anxious in relationships. It is a person who can notice when an old pattern is activating and make a different choice — not every time, but more often, and with less violence toward themselves in the moments when the old pattern wins.
Reach out for a free consultation if you are interested in attachment work — in understanding your patterns and beginning the process of genuine change.
Clinical disclaimer: This article provides psychoeducational information only and does not constitute clinical advice or establish a therapeutic relationship. If you are in crisis, please contact Talk Suicide Canada: 1-833-456-4566 (24/7) or text 45645.