Parkinson’s disease is a neurodegenerative brain disorder. Nearly one million people will be living with Parkinson's disease (PD) in the U.S. by 2020, which is reported to be more than the number of people diagnosed with multiple sclerosis, muscular dystrophy and Lou Gehrig's disease combined. It is estimated that 60,000 Americans are diagnosed with PD each year. Currently, more than 10 million people worldwide are living with PD. The disease affects each patient differently and the symptoms can