Essential tremor is a condition that affects the nervous system, causing involuntary and rhythmic shaking or trembling. This shaking is often most obvious in the hands and forearms, but … What is essential tremor? Essential tremor is a movement disorder that causes parts of your body to shake. This kind of shaking isn’t controllable, and you can’t keep yourself from doing it.

Essential tremor (et) is a neurological disorder that causes your hands, head, trunk, voice, and/or legs to shake rhythmically. It is often confused with parkinson disease. It is most common in …