Huntington's disease is a deadly genetic disorder in which cells in certain brain areas slowly waste away until they no longer work. There is no cure for Huntington's disease and no way to prevent the condition from getting worse. However, medicines can help control symptoms for a while. If you have a parent with Huntington's disease, you have a 50-50 chance of developing the illness yourself. Follow the links below to find WebMD's comprehensive coverage about how Huntington's disease develops, what the symptoms are, how to treat it, and much more.