Scientists have developed a technique involving electrical fields to treat brain cancer that doubled the survival rate in clinical trials. By using "intermediate frequencies," scientists are able to turn off brain tumor cells, causing them to die instead of reproduce. Since healthy brain cells are famous for their near inability to divide, and use different electrical properties to boot, they're not affected by the treatment. The result? No observable side effects.

Considering the legendary suffering of those going through chemo, radiation, and surgical therapies, it's very much a Good Thing.