Drugs and such

3. A chronic dysfunction of the brain system involving reward, motivation, and memory.
6. The primary respiratory organ directly damaged by inhaling smoke or heated chemical aerosols.
8. A physical condition in which the body relies on the constant presence of a substance.
9. A legal and medical term primarily used to classify moderate to severe pain-relieving agents.
13. Education and strategies aimed at stopping the initiation of substance misuse.
15. Medical or psychological care provided to assist individuals overcoming a chemical dependency.
17. A poisonous substance that can cause immediate or long-term damage to biological systems.
18. A substance that raises levels of physiological or nervous activity in the body.
19. A chemical messenger in the brain associated with pleasure and reward processing.
20. A process of health and wellness improvement to overcome chemical dependency.

1. A type of drug that alters a person's perception of reality, thoughts, and feelings.
2. The physical and mental symptoms that occur after stopping or reducing the intake of a substance.
4. Any chemical matter or drug capable of altering normal bodily or mental functions.
5. A drug that slows down brain activity and reduces arousal or stimulation.
7. The highly addictive chemical found in tobacco products and most e-cigarettes.
10. A class of substances used medically for pain relief but carrying a high risk of addiction.
11. The central nervous system organ structurally altered by habit-forming chemical compounds.
12. An excessive and dangerous dose of a substance that results in a medical emergency.
14. The aerosol cloud produced by heating liquid inside an electronic delivery device.
16. A state where a body adapts to a drug, requiring higher doses to achieve the same effect.