“Parkinson’s disease is a progressive disorder of the nervous system that affects movement,” Mayo Clinic states. The most common or distinguished sign of the disorder is a tremor. The tremor usually begins in one of the limbs, most often the hand (Mayo Clinic). Another sign of Parkinson’s disease is a change in one’s speech. Someone with Parkinson’s might talk fast, quiet, with a slur, or there might be a slight delay before they begin to speak. Also, having stiff muscles is another sign of the disorder. An individual suffering from Parkinson’s disease may have limited range of motion because their muscles are so stiff, and it can cause them pain (Mayo Clinic). The cause of Parkinson’s disease is from a neurotransmitter in the brain called
