What is the typical presentation of essential tremor in adults?

The typical presentation of essential tremor in adults is characterized by a bilateral tremor of the upper extremities. This condition often manifests as a rhythmic shaking that is most commonly observed when the arms are in an outstretched position or while performing purposeful movements, such as writing or drinking from a glass. The tremor tends to improve with the use of alcohol, which is a noted feature distinguishing it from other types of tremors.

Essential tremor is usually symmetric, affecting both upper limbs, and can also involve the head, leading to a nodding motion. The tremor often becomes more pronounced with stress or fatigue and can progress with age. Recognizing the bilateral nature of the tremor and its potential involvement of the upper extremities is crucial for diagnosing this condition and distinguishing it from other tremor disorders.