“The movement disorders related to Huntington’s disease may cause movements that can’t be controlled, called chorea. Chorea are involuntary movements affecting all the muscles of the body, specifically the arms and legs, the face and the tongue. They also can affect the ability to make voluntary movement. People with Huntington’s disease also may not be able to control voluntary movements. This can have a greater impact than the involuntary movements caused by the disease. Having trouble with voluntary movements can affect a person’s ability to work, perform daily activities, communicate and remain independent.”