Parkinson's disease is a progressive neurodegenerative disorder that affects movement and is characterized by symptoms such as tremors, stiffness, and difficulty with balance and coordination. It is caused by the loss of dopamine-producing cells in the brain, leading to a decrease in dopamine levels and impairment of the brain's ability to control movement. Research in Parkinson's disease focuses on understanding the underlying mechanisms of the disease, developing better diagnostic tools, and discovering new treatments to slow down or halt its progression. This includes studies on the genetics and environmental factors that contribute to the development of the disease, as well as the development of new medications, therapies, and surgical interventions to alleviate symptoms and improve quality of life for patients. Additionally, research also looks into the potential of stem cell therapy, gene therapy, and other cutting-edge treatments to restore dopamine levels and improve motor function in individuals with Parkinson's disease.