Patient case (clinical description): A 60-year-old man comes to the clinic complaining of hand tremor that started few months ago.  It is most bothering when he wants to drink from a glass or pour from a bottle. He does not smoke, but drinks occasionally. He recently started consuming more alcohol as his tremor subsides somewhat when he drinks small amounts of alcohol.  Family history is significant for similar problems in his mother.  Vital signs are normal and the patient has no other medical conditions.  Neurologic examination shows bilateral tremor in the upper extremities. The diagnosis of essential tremor is confirmed.

Patient's own account: I'm only a 60 years old man but I already suffer from shaky hands. It started a few months ago, and it really bothers me when I want to pour myself a glass or even while drinking. I don't smoke, but I drink alcohol from time to time. To be honest, I've been drinking a little more lately since it helps me with the shaking. My mom had the same issue when she was my age. The doctor took my vitals, and they were normal. I don't have any other medical issues. I underwent neurological exams and it showed that I’m shaky from both sides. The doctor diagnosed me with essential tremor.

Clinical trial: The Essential Tremor (ET) and Parkinson Disease (PD) Tremor Acute Stimulation Study

Eligibility criteria:
Inclusion Criteria:

          -  Able to Sign written informed consent in Hebrew.

          -  Patient agrees to attend all treatment procedures and follow-up evaluations and is
             willing and able to comply with all study requirements.

          -  Patient with a clinical diagnosis of idiopathic PD, or ET for more than 3 years.

          -  Significant tremor for at least one upper limb causing distress or disability.

          -  Patient should be stable on anti-Parkinson's disease or anti-tremor medication for at
             least one month prior to study enrollment.

        Exclusion Criteria:

          -  Previous participation in another study with any investigational drug or device within
             the past 90 days.

          -  Any active implant (cardiac or other).

          -  Current pregnancy or attempting to get pregnant (female patient).

          -  Patient has any major illness or medical condition that in the opinion of the
             physician would interfere with participation in the study.

          -  Patient with other significant neurological or psychiatric disease other than
             Parkinson Disease or Essential Tremor.

          -  Patient has any other condition expect for PD and ET that induce tremor.

          -  Patient is treated with drug that may induce tremor.

          -  Patient abuses drugs or alcohol.

          -  Any previous thalamotomy, pallidotomy or patient who has undergone a DBS procedure.

          -  Any anticipated need for surgery during the study.

          -  Any malignancy in the past 2 years.

          -  Patient has confirmation of diagnosis of a terminal illness associated with survival
             <12 months.
No condition on gender to be admitted to the trial.
No healthy subjects accepted to join the trial.
Subject must be at least 18 Years old.
Subject must be at most 80 Years

Eligibility (NLI label): Entailment