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Many people associate shaky hands with Parkinsonâs disease, but the most common cause of shaking hands is actually essential tremor. Essential tremor is the most common neurologic disorder affecting adults, but itâs not well understood.
There are a couple different reasons for tremor in the hands. First, if your are fatigued, sometimes this comes out in the muscles as a tremor. It can be worsened by caffeine, such as coffee or soda. Fatigue alone as a cause of muscle shaking would be unusual just in the mornings, however, as one would think that that is when you would be at your least fatigued. A second cause would be essential tremor. This is a relatively benign neurological condition of unknown cause in which a part of the body (usually the hands) shakes, primarily when trying to perform an action as opposed to when at rest. Essential tremor is also worsened by caffeine, like a fatigue tremor. There are several medications which can be used effectively to decrease the severity of essential tremor. Other causes of tremor would be unlikely in a young man, but still need to be ruled out by your doctor.