A popular supplement may be able to protect the brain from the damaging effects of stroke.
Researchers from Johns Hopkins University studied the effects of ginkgo biloba on the brains of mice. The mice were given the supplement daily for a week, and then suffered a stroke. They found the mice that had been given ginkgo biloba had less brain damage compared to mice not given the herb.
So, researchers believe ginkgo may prevent damaging compounds from killing brain cells. They emphasize they're not ready to recommend taking the supplement until they do more studies on people.