(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.
Hand Numbness and Tingling, by David Katz, MD. Do your hands ever go numb and tingly? Do you wake up at night with a âdeadâ hand and have to shake it out to get it to âwake up?â Do your hands fall asleep while driving a car or holding a cell phone? If so, then you may have increased pressure on a nerve in your palm â a condition called Carpal Tunnel Syndrome. Carpal Tunnel Syndrome (CTS) is the most common cause of numbness and tingling in the hand. As a result of pressure on the median nerve, one may experience pain, weakness, and numbness in the hand and fingers. This typically affects some combination of the thumb, index, middle, and ring finger.