Essential tremor is characterised by a progressive tremor of the upper extremities, present in posture and action, without other neurological signs or symptoms.
The prevalence and incidence increases with age, but the condition can appear in early adulthood in those who have a family history.
Sheng-Han Kuo, Assistant Professor of Neurology, Columbia University, New York, gives us an overview of the condition.
For more on essential tremor, visit BMJ Best Practice: bestpractice.bmj.com/topics/en-gb/1089
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