What is a common symptom associated with both Parkinson's disease and Huntington's disease?

What is a common symptom associated with both Parkinson's disease and Huntington's disease?

• A. Tremors
• B. Visual impairment
• C. Cognitive decline
• D. Involuntary facial movements

Answer: (A)

Tremors are a common symptom associated with both Parkinson's disease and Huntington's disease. In Parkinson's, tremors are often one of the hallmark signs, particularly resting tremors that can affect the hands, arms, and legs. These tremors are caused by the loss of dopamine-producing neurons in the brain, leading to motor control issues. In Huntington's disease, while the movement abnormalities are more varied and include chorea, some individuals also experience tremors. The presence of tremors in both conditions highlights the overlap in motor symptoms despite the different underlying neurodegenerative processes. The other symptoms listed, such as visual impairment and cognitive decline, can occur in these diseases but are not as universally prominent or shared. Involuntary facial movements, prevalent in Huntington's disease as part of the chorea, are less commonly associated with Parkinson's disease, making tremors the most notable common symptom.

Tremors are a common symptom associated with both Parkinson's disease and Huntington's disease. In Parkinson's, tremors are often one of the hallmark signs, particularly resting tremors that can affect the hands, arms, and legs. These tremors are caused by the loss of dopamine-producing neurons in the brain, leading to motor control issues.

In Huntington's disease, while the movement abnormalities are more varied and include chorea, some individuals also experience tremors. The presence of tremors in both conditions highlights the overlap in motor symptoms despite the different underlying neurodegenerative processes.

The other symptoms listed, such as visual impairment and cognitive decline, can occur in these diseases but are not as universally prominent or shared. Involuntary facial movements, prevalent in Huntington's disease as part of the chorea, are less commonly associated with Parkinson's disease, making tremors the most notable common symptom.