Why Do Some People Become Addicted to Substances, While Others Do Not?

As with other diseases and disorders, the likelihood of developing a Substance Use Disorder differs from person to person, and no single factor determines whether a person will become addicted to substances. In general, the more risk factors a person has, the greater the chance that taking substances will lead to continued substance use and addiction. Protective factors, on the other hand, reduce a person’s risk. Risk and protective factors may be either environmental or biological.

Article about drug misuse https://www.drugabuse.gov/publications/drugs-brains-behavior-science-addiction/drug-misuse-addiction#:~:text=Why%20do%20some%20people%20become%20addicted%20to%20drugs%2C%20while%20others%20do%20not%3F