Arrests reveal debate about costs and benefits of proton therapy

Both proton and standard photon radiation achieve the same goal of damaging tumor cell DNA. But because protons are heavier, they stop at their target, thus reducing extra radiation to noncancerous areas. This is ideal for treating tumors near sensitive structures, such as the brain or spinal cord, or for treating childhood cancers, as radiotherapy comes with a risk of developing secondary cancers decades later.

Tackling the brain: Clues emerge about the pathology of sports-related brain trauma

CTE has been a flash point in the debates over whether professional football puts players at risk for neurological disease, ever since pathologist Bennet Omalu first reported the pathology in a retired National Football League (NFL) player. More than ten years later, the inability to diagnose the brain condition during life or ascribe to it specific causes or clinical symptoms add to the contention.