From the first large studies monitoring the mental functioning of the same group of healthy humans over many years, scientists have uncovered unexpected results.

Moderate amounts of alcohol do not kill brain cells.

Listening to classical music hasn't been shown to improve intelligence in children or adults.

Optical imaging relies on shining weak lasers through the skull to visualize brain activity. These techniques are inexpensive and relatively portable. They are also silent and safe: Because only extremely weak lasers are used, these methods can be used to study everyone, even infants.

A stressful situation activates three major communication systems in the brain, all of which regulate bodily functions.

What do standing frustrated in a supermarket checkout line or sitting in a traffic jam have in common with fleeing predators, as was done in the early days of human beings?

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

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.

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.

Information on how the brain works, how mental illnesses are disorders of the brain, and ongoing research that helps us better understand and treat disorders.