Drug-free headache relief
The vagus nerve is a powerful bundle of fibers. The body’s longest cranial nerve, it weaves itself from the brainstem and down through the abdomen. Stimulating it alters nerve functioning in helpful ways, like stopping cluster headaches, which cause excruciating pain. GammaCore is the first noninvasive vagus stimulator for patient use. The device excites the nerve with electrical pulses to calm the headaches.