Dopamine:A neurotransmitter that plays a crucial role in controlling movement. In Parkinson's disease, there is a significant decrease in dopamine levels.
Tremors: Involuntary shaking or trembling movements commonly seen in individuals with Parkinson's disease.
Deep brain stimulation (DBS): A surgical procedure where electrodes are implanted into specific areas of the brain to alleviate Parkinson's symptoms by sending electrical impulses.