When you first hear the term neuromodulation, it may sound like a something from an episode of Star Trek. But there's no science fiction here. The fast-growing field includes devices that change your nerve activity by sending electrical signals to a specific area in your body, according to the International Neuromodulation Society. From neuromodulation comes a therapy called a deep brain stimulation (DBS). For people living with Parkinson's disease and essential tremor, deep brain stimulation can be a revelation as they manage complex medical conditions, transforming their lives for the better. Still lost in a futuristic sci-fi movie? Read on to learn more about DBS and how it's enhancing the lives of people with Parkinson's disease and essential tremor.