A tremor is a rhythmic muscle contraction and relaxation involving to and fro movements of one or more body parts. Some tremors may be triggered by or become exaggerated during times of stress or รขโ‚ฌยฆ Myoclonus (jerky involuntary movements) essential facts for patients what is myoclonus?

It can affect one or more muscles and can occur both รขโ‚ฌยฆ