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Marathon runner Aaron found he had Parkinson's aged 39 but through his love of exercise he's found a way to combat the disease.

Aaron told 5 live Breakfast: "Getting back in to exercise after my diagnosis was huge for me, it improves the symptoms. It gives me the headspace to be myself."

"My message to someone with early onset Parkinson's disease is, 'don't panic'. Keep talking, keep communicating, especially if you're on a downer."