A substantial number of patients with brain metastases who experience cognitive side effects following radiation therapy may fully regain cognitive function, according to a pooled analysis of three large, Phase III clinical trials. Recovery was more likely for people treated with conformal, or highly targeted, radiation techniques, compared to standard whole-brain treatment. The two most common types of conformal radiation are stereotactic radiosurgery (SRS), which delivers fewer, but higher doses of radiation per treatment to the tumor site, and hippocampal avoidance WBRT, which limits radiation exposure to the parts of the brain known to contribute to neurocognitive side effects that...