You can use the sections below to go deeper, or jump using “On this page”.
Reward and learning
Substances and rewarding behaviours can reinforce the situations, emotions and cues that precede them. Over time, places, people, stress states or routines can become powerful triggers.
Stress and emotional regulation
For some people, alcohol, drugs or compulsive behaviours become a way of changing how they feel — reducing anxiety, numbing distress, escaping boredom or creating temporary relief. That short-term effect can strengthen the pattern even when long-term consequences become severe.
Mental health
Depression, anxiety, trauma-related symptoms, ADHD and other mental health difficulties can coexist with addiction. Sometimes substance use worsens mental health; sometimes symptoms pre-date the addictive pattern; often the relationship goes in both directions.
What this page is anchored to
We summarise guidance in original plain English. Open the primary sources if you want to check the underlying recommendations.
Social and environmental factors
Availability, peer groups, poverty, housing insecurity, occupational stress, family patterns, loneliness and cultural expectations can all alter risk and recovery opportunities.
Understanding why a pattern developed can help identify what needs to change and which supports are likely to be useful.
This page provides general educational information and does not replace assessment or advice from a healthcare professional. If you are worried about severe withdrawal, overdose, immediate danger or a mental health emergency, use our urgent help guidance.