Legal Substances: Legal substances refer to drugs or other chemical compounds that are allowed for use and distribution under specific regulations, such as alcohol, nicotine, and prescription medications.
Drug Dependence: Drug dependence occurs when an individual becomes physically or psychologically reliant on a drug, leading to withdrawal symptoms when they try to stop using it.
Substance Abuse:Substance abuse refers to the excessive and harmful use of any substance, whether legal or illegal, resulting in negative consequences on physical health, mental well-being, and social functioning.