Addiction and dependence

Addiction and dependence can affect how a person uses substances or engages in behaviours despite harmful consequences. What begins as a way to feel relief, connection, stimulation or escape can become increasingly difficult to regulate. The term covers varied experiences, and careful assessment matters: not every repeated behaviour is an addiction, and dependence can develop with some prescribed medicines as well as with harmful substance use.

1. Compulsion, craving and reinforcement

Substances and behaviours can be reinforced because they produce pleasure, relieve distress or temporarily reduce withdrawal symptoms. Over time, cues and routines may trigger strong urges, while other sources of reward become less compelling. A person may continue even when they recognise negative effects. This does not mean responsibility disappears; it means change often requires more than willpower alone.

2. Risk and context

Biological vulnerability, stress, trauma, mental health difficulties, availability, social settings and patterns of use may all contribute. Addiction is not explained by one personality type or background. Shame, stigma and fear of judgement can make people hide problems, reducing opportunities for early help.

3. Recognising harmful patterns

Possible signs include loss of control, cravings, increasing amounts, withdrawal, neglect of responsibilities, continued use despite harm, or unsuccessful attempts to reduce. The nature of the signs depends on the substance or behaviour. Dependence and addiction are related but distinct: physical dependence can occur during appropriate medication use and should not automatically be equated with addiction.

4. Treatment and harm reduction

Support may include psychological therapy, peer groups, structured addiction services, medication and practical help. For alcohol or certain sedatives, abrupt withdrawal can be medically dangerous, so reduction should be planned with a clinician. Harm-reduction approaches can reduce immediate risks while a person considers or begins treatment. Co-occurring depression, anxiety, trauma or physical illness may also need attention.

5. Recovery and relapse

Recovery may involve changing routines, addressing the needs a substance or behaviour once met, strengthening social support and planning for high-risk situations. A return to use is a signal to reassess support, not proof that change is impossible. The right approach depends on the substance or behaviour, current risks and the person's own goals.

When to seek urgent help

If symptoms are severe, worsening rapidly or make it difficult to remain safe, seek urgent professional support. In England, contact NHS 111 and select the mental health option for urgent support. If there is immediate danger, call 999 or go to A&E.