Medical Discovery News, Aug. 16, 2008 Saturday's edition of Medical Discovery News, by UTMB professors Norbert Herzog and David Niesel, was about blast brain injury that occurs when an explosion sends waves of pressure through a body.  This type of injury, which occurs to many soldiers serving in Iraq and Afghanistan, is difficult to detect with imaging equipment because the injury often is at the molecular level. Blast brain injuries often are called "silent injuries" because brain cells associated with learning and memory can die months after an explosion occurred. Medical "[t]reatment for blast injury is still in its infancy. That's why we need more research to understand it and design appropriate diagnostics and therapies to manage this ‘silent disease.'" Discovery News airs at 10 a.m. on KUHF-FM in Houston. The program also airs on numerous radio stations across the country and in Mexico.