Stem cell transplants may be able to repair damage caused by stroke, according to researchers at the University of Zurich. In experiments with mice, the treatment helped generate new neurons, restore movement, and trigger several other forms of brain repair, offering a promising step toward regenerative treatments for neurological damage.

Stroke is extremely common, affecting about one in four adults over a lifetime. Roughly half of those who experience one are left with lasting problems such as paralysis or difficulty speaking.