Deep brain stimulation (DBS) is a surgery to implant a device that sends electrical signals to brain areas responsible for body movement. Electrodes are placed deep in the brain and are connected to a stimulator device. Similar to a heart pacemaker, a neurostimulator uses electric pulses to regulate brain activity. DBS can help reduce the symptoms of tremor, slowness, stiffness, and walking problems caused by Parkinson’s disease, dystonia or essential tremor. DBS surgery can also be done for epilepsy and OCD. Successful DBS allows people to potentially reduce their medications and improve their quality of life.