1. Introduction -- 2. Neurotransmitters: The Brain's Own Drugs -- 3. Receptors: Locks for the Addictive Keys -- 4. Addictive Behavior -- 5. Pain and Pleasure -- 6. The Seesaw Brain: "Highs" and Adaptations -- 7. Are Addicts Born or Made? -- 8. Nicotine -- 9. Alcohol and Related Drugs -- 10. Heroin, Morphine, and Other Opiates -- 11. Cocaine and Amphetamines -- 12. Cannabis (Marijuana) -- 13. Caffeine -- 14. Hallucinogens -- 15. Prevention: Just Say No? -- 16. Treatment Addiction, Preventing Relapse -- 17. Three Lessons from the Street -- 18. Three Lessons from Abroad -- 19. Prohibition vs. Legalization- A False Dichotomy -- 20. New Strategies for Rational Drug Policy

1. Drug addiction
2. Drug abuse -- Social aspects