The largest part of the brain is the highly-evolved ... outermost layer of the cerebrum, extending across all the brain’s lobes. Just 1.5 to 5 millimeters in width, it is composed of the neurons ...

They can cause problems if they press on certain areas of the brain. Depending on the part of the brain they’re in, they can be life-threatening. Malignant brain tumors have cancer cells.

Your brain isn’t stagnant; throughout your lifetime, many changes occur as a result of genetic, hormonal, and environmental factors that accompany emotional, intellectual, and physical milestones, ...

One evening in 1951 astronomer William Wilson Morgan was strolling home from Yerkes Observatory in Wisconsin when he looked up at the night sky and had a “flash ...

They rarely cause lesions in the white matter, a deeper tissue containing nerve fibers that transmit signals between different parts of the brain. In her case, the worms appeared to be directly ...