Introduce the discussion and set the tone. Emphasize that this session is about understanding the impact of substances, not about judging those who might have used them. Encourage openness and curiosity.

Provide a brief explanation on what substances are, including legal and illegal varieties. Encourage students to think critically about why people might turn to substances.

Discuss how substances affect the body physically. Highlight immediate and long-term physical impacts. Ask students to share any concerns or facts they know about these effects.

Discuss the mental and emotional effects of substance use. Encourage reflections and questions about mood changes and behavior alterations due to substance use.

Pose open-ended questions for class discussion. Remind students that there are no wrong answers.

Summarize the key points from the discussion and encourage reflection.