Tremor Risk Factors and Causes
Age is a risk factor for essential tremor. ET is more common in people over the age of 60.
There is often a family history of the disorder and approximately 50% of cases have a genetic link. Essential tremor is an autosomal dominant trait that has been linked to gene ETM1 and gene ETM2. Having a parent with the disorder increases the risk.
The cause of essential tremor in people without the genetic mutation is unknown.
