Essential Tremor is a progressive and highly prevalent neurologic disease that causes a rhythmic trembling of the hands, head, voice, legs, or entire body, the largest movement disorder in the world, affecting over 130 million (including children). ET can worsen with time causing serious debility. Essential Tremor can begin at any age from ages 1 to 100 and affects both men and women and individuals of every age, race or ethnicity and national origin.