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The Neurobiology of Drug Addiction

2: The brain and spinal cord

The brain and spinal cord

The central nervous system is composed of both the brain and the spinal cord. Describe the brain as a functional unit; it is made up of billions of nerve cells (neurons) that communicate with each other using electrical and chemical signals.

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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