In-depth

Cervical dystonia

Cervical dystonia is a neurological movement disorder affecting your neck. This painful condition occurs in children and adults and is most common in women.

Dystonia

Dystonia causes involuntary, sustained muscle contractions, resulting in repetitive movements, twisting and abnormal posture.

Essential tremor

Trembling hands aren't a normal part of aging. Instead, they may result from a movement disorder called essential tremor.

Mental illness

There are more than 200 types of mental illnesses. Learn about risk factors, symptoms, treatments and coping.

Myoclonus

Myoclonus refers to involuntary muscle jerks. Examples range from simple hiccups to the jerking movements common in epileptic seizures or cognitive disorders.

Obsessive-compulsive disorder

Irresistible urges to repetitively count, check or wash are common obsessive-compulsive disorder symptoms. Treatment can help, so don't let shame hold you back.

Parkinson's disease

Parkinson's disease can cause problems with walking, swallowing, balance and coordination. Although there's no cure, drug and surgical therapies can effectively treat symptoms.

Tourette syndrome

The tics of Tourette syndrome can cause distress and anxiety, especially for children. Understand this condition, its treatments and how to cope.

Jan. 10, 2013