Mild brain injuries _ once considered an under-recognized problem in returning military troops _ are being overdiagnosed because the government is using soft criteria instead of hard medical evidence, an Army doctor and two other officials contend.

Behind Dan DeRosa’s smiling face lurks a dull headache that never goes away. He suffers from memory lapses and hears a shrill ringing in his ears akin to the lingering squeal of a heavy metal concert.

A so-called “smart drug” popular with young people may carry more of an addiction risk than thought, a small government study suggests. Scans of 10 healthy men showed that the prescription drug Provigil caused changes in the brain’s pleasure center, very

A group of doctors and scientists said Thursday the U.S. needs to devise a uniform test for traumatic brain injury to be performed on all troops who are exposed to a blast or other violent event in wartime.

A group of doctors and scientists says the U.S. needs to devise a uniform test for traumatic brain injury to be performed on all troops who are hurt in wartime.

The number of U.S. troops who have suffered wartime brain injuries may be as high as 360,000 and could cast more attention on such injuries among civilians, Defense Department doctors said Wednesday.

A 300-million-year-old fossilized brain has been discovered by researchers studying a type of fish that once lived in what is now Kansas and Oklahoma.

Beauty is in the brain of the beholder. Go to any museum and there will be men and women admiring paintings and sculpture. But it turns out they are thinking about the sight differently. Men process beauty on the right side of their brains, while women us

A man has been sentenced to 12 to 15 years in prison for allowing a brutal beating that left his stepdaughter with a severe brain injury and put her at the center of a right-to-die case in Massachusetts.

A pediatric neurosurgeon says a tumor he removed from the brain of a Colorado Springs infant contained a tiny foot and other partially formed body parts.