Introduce the session, explain the title, and share the overall goal of understanding drug effects on the brain.

Show an image of the brain's parts with simple labels. Explain briefly the key areas involved in decision-making, memory, and reward.

Discuss the function of neurotransmitters and introduce the concept of how signals are transmitted in the brain, and how drugs can interact with these signals.

Explain how different drugs interact with neurotransmitter systems. Use examples (e.g., stimulants, depressants, opioids) to illustrate the differences.

Summarize key points and introduce discussion prompts. Encourage students to think critically and ask questions.