Tremor

Tremor is an involuntary, rhythmic, shaking movement of a body part. It is caused by a malfunction in the part of the brain that controls muscle movement. Tremor can be caused by a variety of factors, including neurological conditions, medications, and substance abuse. The most common type of tremor is an resting tremor, which is seen when a body part is at rest and not actively being used. This type of tremor is usually caused by damage to the cerebellum or the thalamus, two parts of the brain that are important for controlling muscle movement. It is also seen in some neurological conditions, such as Parkinson's disease, essential tremor, and multiple sclerosis. Another type of tremor is an action tremor, which is seen when a body part is actively used. This type of tremor can be caused by medications, such as certain psychiatric drugs, or other factors, such as alcohol consumption or stress. Tremor can have a significant impact on a person's daily life, making it difficult to perform tasks that require fine motor control, such as writing or eating. Treatment of tremor depends on the underlying cause and may include medications, physical therapy, and surgery.