DBS is primarily used for movement disorders, but its application is expanding. The most common conditions treated with DBS include: - Parkinson's Disease: DBS can alleviate motor symptoms such as tremor, rigidity, and bradykinesia. - Essential Tremor: It can significantly reduce tremors. - Dystonia: DBS can help manage muscle contractions and abnormal postures. - Epilepsy: Emerging use in reducing seizure frequency. - Obsessive-Compulsive Disorder (OCD): Used in treatment-resistant cases. - Depression: Investigational use in severe, treatment-resistant depression.