Deep brain stimulation (DBS) involves surgically implanting a medical device called a brain pacemaker to deliver electrical stimulation to targeted areas of the brain. DBS has been shown to effectively treat Parkinson's disease, tremors, dystonia, and chronic pain by sending electrical impulses to regions like the thalamus or globus pallidus internus. The DBS device consists of electrodes, lead wires, and a pulse generator that are implanted via stereotactic neurosurgery to precisely target affected areas of the brain. While DBS provides an alternative to medication for certain neurological conditions, it also carries risks like bleeding in the brain and device malfunctions or failures over time.