As emotions rise and fall in everyday life, your brain keeps up, constantly adjusting. These transitions between feelings—like joy, sadness, or fear—aren’t just random reactions. They’re part of a ...

Recent work has revealed some of the many crucial functions of astrocytes, brain cells that were once thought to play primarily supportive roles for neurons. Astrocytes do handle debris around neurons ...

What unique processes conspire to create a healthy, functional human brain? How can we be so genetically similar to, say, chimpanzees, and yet be light-years more sophisticated cognitively and ...

Déjà vu, a fleeting sensation of having experienced a present moment before, arises from a brief misfire in the brain's ...

The human brain contains about 86 billion neurons. These cells fire electrical signals that help the brain store memories and send information and commands throughout the brain and the nervous system.

Five distinct ages of the human brain have been identified. Four major turning points - around age nine, 32, 66 and 83 - create five broad eras of neural wiring over the average human lifespan, ...