Substance use problems

In this section we will define commonly used terminology in connection with substance use and abuse. We will also discuss the process of substance use initiation and how this can develop into addiction.

Psychoactive substances are substances which, when taken into the body, have a major effect on the brain and can alter physical and psychological functioning. Many people enjoy the psychological changes in mood and thoughts that psychoactive substances can bring about. As a result, people often develop a habit of taking the drugs more frequently. These substances are therefore also referred to as habit-forming substances.