There is no known reason why a person gets Parkinson's disease. There is no mystery as to its cause, but when it comes to cure and why it happens, that is the real mystery that medical experts have been trying to uncover for years. In some cases, Parkinson's disease is genetically linked to a former relative. Apart from hereditary cases, no one knows why Parkinson's disease strikes those affected. When a person is diagnosed with Parkinson's disease, they will find that as the disease progresses, they lose more and more control of their body each day. Parkinson's disease is a nervous system disorder that occurs when the brain cells responsible for producing dopamine in the body begin to slow down the process of dopamine production and/or stop it altogether. These dopamine-producing cells are found in a group of cells called the substantia nigra, which is found in the midbrain, also known as the midbrain. What dopamine does is send electrical signals in the brain between the dopamine-producing nerve cells in the substantia nigra to the corpus striatum (a part of the forebrain). With the right flow of electrical signals between nerve cells, your body will produce smooth muscle movements. When dopamine production is interrupted, slows down, or stops, it results in a lack of dopamine. With this lack of dopamine, the body's muscles will produce shaky, jerky movements instead of the smooth, graceful movements these muscles are accustomed to. Disrupted long enough, and during an acute attack of Parkinson's disease, the dopamine-producing cells and the tissues surrounding them will then begin to die causing a short...... middle of paper..... May Clinic, February 15, 2011http://www.mayoclinic.com/health/parkinsons-disease/DS00295/DSECTION=treatments-and-drugsMay Clinic, February 15, 2011http://www.mayoclinic.com/health/parkinsons-disease /DS00295/ DSECTION=lifestyle-and-home-remediesMay Clinic, February 15, 2011http://www.mayoclinic.com/health/parkinsons-disease/DS00295/DSECTION=alternative-medicineMay Clinic, February 15, 2011http://www.mayoclinic . com/health/parkinsons-disease/DS00295/DSECTION=preventionMay Clinic, February 15, 2011http://www.mayoclinic.com/health/parkinsons-disease/DS00295/DSECTION=risk-factorsNational Institute of Neurological Disorders and Stroke ( NINDS), October 18, 2004http://www.ninds.nih.gov/disorders/parkinsons_disease/parkinsons_disease_backgrounder.htmPub Med Health, May 6, 2011http://www.ncbi.nlm.nih.gov/pubmedhealth/PMH0001762/