The clinical features of Huntington's disease can include psychiatric problems and difficulties with behaviour, feeding, communication and abnormal movements. People can start to show the features of Huntington's disease at almost any age, but most will develop problems between the ages of 35 and 55. The condition usually progresses and gets worse for around 10-25 years, until the person eventually dies. Signs and symptoms may vary between individuals and there's no typical pattern. Early features, such as personality changes, mood swings and unusual behaviour, are often overlooked at first and attributed to something else. Some people with Huntington's disease may not recognise that they have any problems.