Parkinson's disease is the fastest-growing neurological disorder, with over 10 million cases worldwide. Up to 150,000 Australians currently live with the disease, and 50 new cases are diagnosed each day. The number of people living with Parkinson's is projected to more than triple between 2020 and 2050. Yet despite the immense impact on those living with Parkinson's and their loved ones, and the staggering cost to our economy – at least A$10 billion a year – there is still a lot we don't know