The term "drug user" refers to an individual who uses or consumes drugs, either for recreational purposes or as a means of self-medication. This can include any substance that alters one's mental state or physical sensations when ingested, inhaled, or otherwise introduced into the body. The term encompasses individuals who use illicit substances such as marijuana, cocaine, heroin, and methamphetamines, as well as those who use prescription medication not prescribed to them or in a manner other than intended. Drug users can be of any age, gender, race, or socioeconomic status, and their reasons for using drugs may vary widely. The consequences of drug use can range from mild to severe, including physical harm, legal trouble, relationship problems, and loss of personal autonomy.