Many people around the world today suffer from Parkinson's disease and other movement disorders. A movement disorder is a disorder that impairs the speed, fluidity, quality, and ease of movement. There are many types of movement disorders, such as reduced fluidity and speed of movements (dyskinesia), excessive movements (hyperkinesia), and confused movements (hypokinesia). Some types of movement disorders are ataxia, lack of coordination, Huntington's disease, multiple system atrophies, myoclonus, short rapid bursts of movement, progressive supranuclear palsy, restless legs syndrome, reflex sympathetic dystrophy, tics, Tourette's syndrome, tremor , Wilson's disease. , dystonia, which causes involuntary body movements, and Parkinson's disease. Parkinson's disease, Tourette's syndrome and tics are one of the most well-known disorders, known to impair people's movements and rob them of life. Tics are a common movement disorder in which you move involuntarily due to unwanted (motor) muscle contractions. or vocal (vocal) outbursts. Motor tics can cause twitching that can be severe enough to affect normal living activities. Muscle contracture relieves the impulses or sensations experienced by the patient. Vocal tics are also present. Vocal tics are short, repetitive noises that come in sudden bursts. Tics are repetitive and habitual and are very difficult to control. Examples of tics include blinking, throat clearing, facial twitching, grunting, and shoulder shrugging. Tourette syndrome is an inherited movement disorder. Its symptoms consist of multiple motor and vocal tics (repeated muscle contractions). It is during childhood and adolescence that Tourette's syndrome and its symptoms develop, usually between the ages... middle of the document... Melvin D. "Parkinson's disease." American Encyclopedia. Grolier online, 2014. Web. 11 May. 2014.Dudley, Alden W. “Parkinson's Disease.” Grolier multimedia encyclopedia. Grolier online, 2014. Web. 11 May. 2014. “Parkinsonism: Causes and Coping Strategies.” Parkinsonism: what are the causes? Np, nd Web. May 11, 2014. "Secondary Parkinsonism: MedlinePlus Medical Encyclopedia." United States National Library of Medicine. U.S. National Library of Medicine, nd Web. May 11, 2014."Parkinson's Statistics." - Parkinson's Disease Foundation (PDF). Np, nd Web. May 10, 2014."Tic disorders (motor tics) and twitching." WebMD. WebMD and Web. May 11, 2014."Tic." KidsHealth: The most visited children's health site on the web. Ed. Harry S. Abraham. The Nemours Foundation, 01 September 2010. Web. 11 May 2014."Tourette syndrome." Definition. Np, nd Web. May 11 2014.