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

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.

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.

In this two-part lesson by the American Association for the Advancement of Science, students learn the advantages, disadvantages, and potential of diagnostic imaging technologies in brain research.

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

Beginning in the 1940s, Canadian brain surgeon Wilder Penfield mapped the brain's motor cortex -- the area that controls the movement of your body's muscles. Now you can relive his exploration of the brain.

What's going on inside the teenage brain? This Frontline television special explores how science may unlock answers to that question.

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.