Understanding Parkinson’s Disease (PD)

Understanding Parkinson’s Disease (PD) What Is Parkinson’s Disease? Parkinson’s disease (PD) occurs when brain cells that make dopamine, a chemical that coordinates movement, stop working or die. Because PD can cause tremor, slowness, stiffness, and walking and balance problems, it is called a “movement disorder.” But constipation, depression, memory problems and other non-movement symptoms also can be […]