Dreams about wild and violent beasts are among the most startling and memorable. They can leave you wondering what your ...

A study of long-distance runners shows the brain’s remarkable ability to adapt—by burning its own fat. A marathon taxes more than just muscles—it pushes the brain to its metabolic limits.

When a child develops a brain tumor, early diagnosis is essential. Alan Cohen, M.D., director of pediatric neurosurgery at Johns Hopkins Children’s Center, shares the most common signs and symptoms ...