traumatic brain injury

The military is trying to figure out whether troops can sustain brain injuries from firing certain powerful weapons. Two Marines who used to shoot these weapons think they already know.

More than 7.8 million high school students participate in sanctioned sports each year.

Gina "Danger" Mazany is a professional mixed martial arts athlete, and she's helping researchers learn more about head injuries and the female brain.

Research in epilepsy has found a key to why small pulses of electricity to the brain sometimes help and sometimes hurt a failing memory. Brains hurt by physical trauma or dementia might benefit, too.

The military hoped the body-worn sensors would identify troops with brain injuries from a bomb blast. Instead, the sensors showed service members may be at risk from firing their own weapons.