Next to Alzheimer’s disease, Parkinson’s disease is the most common neurodegenerative disorder. This disease results from the dopamine generating cells in the patient’s brain undergoing a massive cell death. While the cause of this cell death is not known, it is obvious that these particular cells are rapidly and dramatically reduced. Over the course of the disease, the patient will exhibit primarily physical symptoms, as opposed to the largely cognitive symptoms exhibited by seniors with Alzheimer’s disease. These symptoms include tremors, continuous shaking, difficulty walking, rigidity and slowness of movement. During the later stages of the disease, seemingly the opposite of Alzheimer’s disease, patients may experience a variety of cognitive or behavioral issues. Other difficult symptoms of the disease include sensory problems, difficulty sleeping and emotional changes. This disease, also as with Alzheimer’s disease, is most prevalent among seniors, with the vast majority of patients developing the disease after the age of 50.