(adj.) Also spelled analogue, describes a device or system that represents changing values as continuously variable physical quantities. A typical analog device is a clock in which the hands move continuously around the face. Such a clock is capable of indicating every possible time of day. In contrast, a digital clock is capable of representing only a finite number of times (every tenth of a second, for example).
If you notice your hands are shaky when pouring a cup of coffee, holding a bridge hand or combing your hair, you may leap to the conclusion you are in the early stages of Parkinson disease. But actually, essential tremor is the most common form of abnormal trembling -- primarily of the hands.
Peripheral neuropathy is a nerve condition of the extremities causing numbness, tingling, and pain. Carpal tunnel syndrome symptoms include burning or tingling in the hand and fingers, numbness, pain and more. Benign essential tremor can cause shaking of the hands and forearms and a quivering voice. Low blood sugar, or low glucose levels, causes shakiness, anxiety, clammy skin, irritability, hunger, and more.