Parkinson’s disease occurs when there is degeneration to an area of the brain that controls voluntary movement as well as voluntary stillness. Aside from affecting the way a person moves, it can eventually affect a person’s ability to think and interact with others. Common symptoms include: tremors, slowness of movement and thought, stiffness, digestion issues, poor balance, and difficulty walking. As this disease progresses, dementia may occur in the advanced stages of the disease. Dr. Lawrence recommends the following link to use as a tool to monitor daily-life-relevant parameters of Parkinson’s Disease: Scoring Parkinson’s – Test Yourself!