What is Essential Tremor?

You may not have heard of essential tremor, but it's a very common medical condition that affects millions of people in the United States. Essential tremor is a movement disorder that causes involuntary shaking, usually in the hands, head, or voice. It can also affect other parts of the body, such as the legs or trunk.

Unlike other movement disorders like Parkinson's disease, essential tremor is not associated with any other medical conditions or diseases. It can occur at any age and may run in families.