Explore the many aspects of sleep and its importance to overall daily function and long-term health.

Learn how our taste buds work and why some of us are sensitive to bitter tastes. Detailed graphics and sound clips explain the mechanics of taste and evolutionary consequences of bitter sensations.

In this lesson, students learn key brain structures and the functions they perform. They then design and model an animal's brain.

This booklet describes the symptoms of anxiety disorders, explains the role of research in understanding the causes of these conditions, describes effective treatments, and suggests ways to make treatment more effective.

In this two-part lesson by the American Association for the Advancement of Science, students learn about gelotology (the science of laughter) and its benefits to our social, mental, and physical well-being.

What happens in the brain of a person with Alzheimer's disease? This tour by the Alzheimer's Association explains how the brain works and how Alzheimer's affects it.

An interactive tutorial about the brain and disorders of the brain with photos, animations, and sound.

In this lesson by the American Association for the Advancement of Science, students learn how the brain receives and sends signals to the body.

Teaching packets for teachers, aimed at secondary school students. Learn how the brain's reward center works, and what happens in the brain when a person uses cocaine, opiates (heroin), or marijuana.

This interactive web resource has articles with photos and demonstrations about how the brain processes information from our bodies, generates thoughts and emotions, stores and recalls memories, and controls movement. Also, watch a video about how scientists store and use donated brain tissue.