Doctors are using an innovative “helmet” to bombard patients’ brains with electrical currents in an effort to treat their brain tumors. The tumors, known as glioblastomas, might otherwise be untreatable, but studies show these “helmets” can prevent tumors from growing and, in some cases, actually shrink. Even better, the electrical currents don’t harm healthy brain tissue and have almost no side effects. We’ll show you how they work.
