More Than a Substance: The Psychology of Addiction
Why does a person continue a behavior even when they know it is harming them? According to the DSM-5, substance use disorder is assessed by considering a range of symptoms occurring within a 12-month period. These include loss of control, unsuccessful attempts to cut down, strong cravings, neglect of responsibilities, continued use despite problems, use in risky situations, tolerance, and withdrawal. At least two criteria must be present for a diagnosis. Addiction, therefore, is not simply a lack of willpower; it is a complex process shaped by biological, psychological, and social factors.
Why Do People Use Substances?
There is no single reason why people use substances. Curiosity, peer pressure, family conflict, easy access, and difficult life experiences can all influence the risk. Some people turn to substances to cope with stress, loneliness, sadness, or anxiety. They may seek temporary relief from anxious feelings, feel more confident in social situations, or escape from difficult emotions. However, this relief may be short-lived, and anxiety or other problems can return afterward. Research has also found a higher risk of substance use disorders among people with attention-deficit/hyperactivity disorder (ADHD). Impulsivity and difficulties with attention and emotional regulation may contribute to this risk in some individuals. However, having ADHD does not mean that a person will inevitably develop a substance use disorder. Depression, anxiety, and traumatic experiences may also be associated with increased risk. Genetic vulnerability and environmental conditions matter, but none of these factors alone makes addiction inevitable.
How Does Social Environment Influence Addiction?
People are influenced by the environments in which they live. When substance use is normalized within a peer group, the desire for social acceptance and easy access to substances can increase the likelihood of experimentation, particularly during adolescence. In contrast, supportive relationships where people feel accepted and can express themselves without judgment may offer protection. Healthy social connections can also help people cope with stress. Understanding addiction therefore requires looking beyond individual choices to consider relationships and life circumstances.
The Effects on the Brain: Why Does Use Continue?
Alcohol and other psychoactive substances affect communication between nerve cells. Changes in brain systems involved in reward, motivation, memory, and decision-making can contribute to repeated use. A substance that initially provides pleasure or relief may eventually be used in larger amounts to achieve the same effect. This is known as tolerance. Withdrawal symptoms that occur when use is reduced or stopped can also strengthen the urge to use again. The brain can also learn to associate certain cues with substance use. A particular place, group of friends, or stressful situation may trigger cravings. As a result, substance use may continue not only in pursuit of pleasure but also as an attempt to escape distressing emotions or withdrawal symptoms. This helps explain why someone may return to using a substance despite being aware of its harmful effects. The severity and duration of these effects vary depending on the substance, frequency of use, and individual health. However, recovery is possible, and appropriate support can help people make positive changes over time.
Is It Possible to Prevent Addiction?
Prevention involves more than simply telling people to stop using substances. Learning to recognize and express emotions, manage impulses, cope with stress, and build healthy relationships can be protective. Families can help by listening rather than judging, while schools can provide reliable information and ensure that young people have access to trusted adults. Sports, art, and other social activities may also help people meet their needs for connection and belonging in healthier ways. Stigmatizing language can make it harder for people to seek help. Addiction is not a moral failure; it is a health condition that may require professional support. Psychological support, medical treatment when necessary, and the involvement of a supportive social network can all play important roles. Returning to substance use does not necessarily mean that recovery has failed. Instead, it can be an opportunity to identify triggers and adjust the treatment plan. Treatment should also be tailored to the individual. Since people use substances for different reasons, the same approach may not work for everyone. Some may need support in managing anxiety or processing trauma, while others may benefit from strategies to improve impulse control, establish daily routines, or change their social environment. Effective assessment considers both a person’s needs and their strengths. Ultimately, instead of asking only, “Why don’t they stop?”, we should also ask, “What need does substance use meet, and what support does this person need to recover?” Overcoming addiction is not just about removing a substance from one’s life. It is also about developing healthier coping strategies and building supportive relationships that make lasting recovery possible.
References
McLellan AT. Substance Misuse and Substance use Disorders: Why do they Matter in Healthcare? Trans Am Clin Climatol Assoc. 2017;128:112-130. PMID: 28790493; PMCID: PMC5525418.
Şen, S., & Sapancı, A. (2024). Bireysel ve sosyal faktörlerin madde bağımlılığı şiddeti üzerindeki yordayıcı etkilerinin karşılaştırılması. Bağımlılık Dergisi, 25(3), 295-310.
Boys, A., Marsden, J., & Strang, J. (2001). Understanding reasons for drug use amongst young people: a functional perspective. Health education research, 16(4), 457-46.
Kaynakça
- References McLellan AT. Substance Misuse and Substance use Disorders: Why do they Matter in Healthcare? Trans Am Clin Climatol Assoc. 2017;128:112-130. PMID: 28790493; PMCID: PMC5525418.
- Şen, S., & Sapancı, A. (2024). Bireysel ve sosyal faktörlerin madde bağımlılığı şiddeti üzerindeki yordayıcı etkilerinin karşılaştırılması. Bağımlılık Dergisi, 25(3), 295-310.
- Boys, A., Marsden, J., & Strang, J. (2001). Understanding reasons for drug use amongst young people: a functional perspective. Health education research, 16(4), 457-469.