Huntington's disease is an incurable neurological condition with complex physical and mental symptoms. These include a deterioration in motor function which leads to reduced control over movement and a loss of ability to walk, talk, eat and swallow. The disease also causes mood and personality changes and, in some cases, serious psychiatric illness. As it progresses, people with Huntington's disease can require 24-hour care, meaning they are no longer able to stay in the family home with loved ones. To compound this devastating toll on families, each child of an HD parent is at 50% risk of inheriting the faulty gene that leads to HD. In Scotland today, there are 1100 people with Huntington's disease and a further 5000 people at risk.