For the millions who live with chronic nerve pain that outlasts its original injury and resists conventional treatment, science has long searched for a more precise target. Researchers at MD Anderson Cancer Center have found an unexpected one: BRAF, a protein already implicated in cancer, appears to migrate from damaged nerves into the spinal cord, where it amplifies pain signals through a cascade that overactivates NMDA receptors. The discovery is notable not only for what it reveals about the biology of suffering, but for what it implies about the medicine already at hand — that existing can