oTHER tREMORS |
|
oTHER TREMORS
Definition Tremor is an unintentional, rhythmic, muscle movement involving to-and-fro movements of one or more parts of the body. Most tremors occur in the hands, although they can also affect the arms, head, face, voice, torso, and legs. Tremor may occur at separate times or be constant.
There are two main categories of tremor:
There are more than 20 types of tremor. Some of the most common are:
Generally, tremor is caused by a problem in the deep parts of the brain that control movements. Some forms of tremor are inherited and run in families, while others have no known cause. Sometimes tremor is a symptom of another neurological disorder or a side effect of certain drugs, but the most common form occurs in otherwise healthy people. Other causes of tremor can include the use of certain medicines, alcohol use disorder or withdrawal, and an overactive thyroid. Tremor may occur at any age but is most common in middle-aged and older adults.
There are two main categories of tremor:
- Resting tremor occurs when the muscle is relaxed, such as when the hands are resting on the lap
- Action tremor occurs with the intended movement of a muscle
There are more than 20 types of tremor. Some of the most common are:
- Essential tremor usually appears on both sites of the body and is often noticed more in the dominant hand
- Dystonic tremor can affect any muscle in the body and usually is associated with abnormal body postures due to forceful muscle spasms or cramps
- Parkinsonian tremor, with shaking of one or both hands at rest and may also affect the lips, face, and legs
Generally, tremor is caused by a problem in the deep parts of the brain that control movements. Some forms of tremor are inherited and run in families, while others have no known cause. Sometimes tremor is a symptom of another neurological disorder or a side effect of certain drugs, but the most common form occurs in otherwise healthy people. Other causes of tremor can include the use of certain medicines, alcohol use disorder or withdrawal, and an overactive thyroid. Tremor may occur at any age but is most common in middle-aged and older adults.