Relationships · Understanding Codependency, part 3 of 9 · 28 September 2026 · Charlotte Himsworth
Roots in Childhood
Codependent patterns often begin as wise adaptations in families where a child had to grow up too soon.
Most patterns we carry as adults made perfect sense when they began. Codependency is no exception. Researchers and clinicians often trace it to childhood environments in which a child’s own needs had to come second, quietly and repeatedly.
Families under strain
Addiction in the family is the best-known root, but it is far from the only one. Parental illness, mental health struggles, conflict, emotional neglect, inconsistent care, or a parent who needed the child to look after them can all shape the same patterns. In many of these homes, love was present. So was unpredictability.
Growing up too soon
Family therapists use the word “parentification” for a child who takes on adult responsibilities: comforting a parent, managing siblings, keeping the household calm. Such children often become remarkably capable, perceptive and kind. They also learn that their worth lies in being useful, and that their own feelings are a burden.
Unspoken family rules
Writing about families affected by alcohol in the early 1980s, Claudia Black described three unspoken rules: don’t talk, don’t trust, don’t feel. Many people who never grew up around addiction still recognise these rules in their own childhood.
Attachment
Attachment research suggests that the way our earliest caregivers responded to us shapes how we approach closeness later on. When care was inconsistent, a child may learn to stay close by staying alert to others’ moods and needs. That vigilance can follow us into adult relationships.
Compassion for the child
None of this is about blame. Parents usually do their best within their own histories. The point is understanding: the patterns you may want to change now were once the cleverest way a child could find to stay safe and connected.
A practice
Look at a photograph of yourself as a child, if you have one. Ask: “What did this child need that they did not always receive?” Then ask: “How might I offer some of that to myself today?”
This article is for reflection and education, not a substitute for professional support. If it brings up difficult feelings, please be gentle with yourself; part nine lists places to turn in the UK, including Samaritans on 116 123, any time.