Substance Use

Definition

Substance use refers to the consumption of drugs or substances that alter one's mood, behavior, or consciousness. It can include the use of both legal and illegal substances.

Related terms

Tolerance:

Tolerance is when an individual needs higher amounts of a substance to achieve the same effects as before.

Withdrawal:

Withdrawal refers to the unpleasant physical and psychological symptoms experienced when someone stops using a substance they have become dependent on.

Addiction:

Addiction is a chronic condition characterized by compulsive drug-seeking behavior and continued substance use despite negative consequences.