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The Brain & the Actions of Cocaine, Opiates, and Marijuana

3D Illustration of the Human Brain

The first in a 5-part series, offers an understanding of the brain, how the reward center works, and what happens in the brain when a person uses cocaine, opiates (heroine), or marijuana.

Revised: January 2007
Author: National Institute on Drug Abuse

This page was last updated January 2007

Teaching Packets

Explores the consequences of drug abuse on the brain and body and introduces the topics of prevention, and treatment.

Featured Publication

Featured Publication

Drugs, Brains, and Behavior - The Science of Addiction

As a result of scientific research, we know that addiction is a disease that affects both brain and behavior.

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