Music is an ancient form of self expression and communication. With modern day technology, it is possible to show how to brain reacts to music and how it can assist people who are unwell. It has been shown to make a positive impack on dementia patients and autistic patients and in brain injuries, such as stroke or brain accident. It is a valuable way in which patients can help themselves. It can also be an emotional support for those going through difficult times and can relieve anxiety and depression. Blood pressure can be reduced and stress levels decreased.