Addiction is a condition in which we cannot function without something, and is defined as a long-term and recurring disease. One of the most widespread types of addiction worldwide is addiction to psychoactive substances. The aim of this research was to determine the influencing factors on the prevalence of drug addiction among young people in the city of Split. The research was conducted using a semi-structured interview method on a sample of adult residents up to 35 years of age in the city of Split - a total of ten interlocutors who identify themselves as addicted to psychoactive substances. The interviews were conducted in the period from February 2023 to March 2024. The results showed that most addicts of psychoactive substances enter the "drug world" in adolescence, and most often with their relatives (friends and/or partner). The most common reasons for starting to consume addictive substances are pressure from the environment, growing up in a dysfunctional community, and in rare cases, they decided to do so out of curiosity. During the analysis of the interviews, it was observed that some of the risk factors are psychological disorders in the family and addicts in the immediate environment. Most of the interlocutors decided to consume because of the positive feelings that the substances gave them, while on the other hand, some decided to consume for the opposite reasons, that is, to not feel anything. Therefore, it can be concluded that addiction often damages relationships with family, partner and friends, and significantly affects the ability to work, finances and the responsible performance of daily duties. Addiction leaves significant physical and psychological consequences on consumers, and society is prejudiced against them. Some addicts are unable to bear rejection from society based on their past, and often return to their vices due to the feeling of isolation. Therefore, it is extremely important to change the narrative about addiction in order to provide the necessary help to addicts, and to prevent their increase.