There are a number of symptoms that may indicate the early stages of Parkinson's, according to a study.
Hearing loss and epilepsy have been confirmed as early warning signs of the condition, with researchers adding the two symptoms to the list already including memory problems and tremors - which can appear as much as five and ten years prior to diagnosis respectively.
The study's findings, published in the medical journal JAMA Neurology, indicated the two additional risk factors are early symptoms of the disease, with both also recognised long before an official diagnosis.
