Answer:
When you need one or more drugs to function.
Step-by-step explanation:
Drug dependence occurs when you need one or more drugs to function. The American Psychiatric Association (APA) used to distinguish between dependence and abuse. Abuse was considered the mild or early phase of inappropriate drug use that led to dependence. People viewed dependence as a more severe problem than abuse.
The difference between physical dependence versus psychological dependence is physical dependence affects your body and psychological dependence affects your behavior. Depending on the addiction, it was previously thought to be either one or the other. In actuality, addiction is both physical and psychological.
Hope this helps :)