Parkinson's disease is a cerebrum issue that prompts shaking, solidness, and trouble with strolling, equalization, and coordination. Parkinson's ailment happens when nerve cells, or neurons, in a region of the cerebrum that controls development become debilitated and additionally pass on. In Parkinson's disease, certain nerve cells (neurons) in the brain gradually break down or die. Many of the symptoms are due to a loss of neurons that produce a chemical messenger in your brain called dopamine. When dopamine levels decrease, it causes abnormal brain activity, leading to symptoms of Parkinson's disease. Parkinson’s disease is a lifelong condition that involves neurological changes in the body. These changes can make it harder for a person to function in daily life. However, medications and other types of therapy are available for treating Parkinson’s disease and reducing the symptoms. Parkinson’s disease is a progressive disease. That means symptoms of the condition typically worsen over time.Many doctors use the Hoehn and Yahr scale to classify its stages. This scale divides symptoms into five stages, and it helps healthcare providers know how advanced the disease signs and symptoms are. Because the cause of Parkinson's is unknown, proven ways to prevent the disease also remain a mystery.Some research has shown that regular aerobic exercise might reduce the risk of Parkinson's disease.