Dystonia is a neurological movement disorder that causes muscles to contract involuntarily, resulting in twisting, repetitive movements and abnormal postures. There are several synonyms for the term "dystonia," including spasm, cramp, abnormal muscle tone, and movement disorders. Some specific types of dystonia also have their own names, such as cervical dystonia or torticollis, which affects the neck muscles and causes the head to turn to one side. Blepharospasm refers to dystonia affecting the muscles around the eyes, causing involuntary blinking and eye closure. Regardless of the synonyms used, dystonia can greatly impact a person's quality of life, making it difficult to perform everyday tasks and participate in activities they enjoy.