We've been focussing on Parkinson's this week after Andy McDowell, who was diagnosed with the disease in 2009 and now does amazing advocacy work, joined us on Wednesday.
Yesterday, the director of The New Zealand Brain Research Institute, Dr Michael MacAskill, told us about some of the latest research.
The Institute's Dr Toni Pitcher is particularly interested in the epidemiology of Parkinson's, both in global terms and also identifying New Zealand-specific trends.
She talks to Jesse about environmental exposure as an aspect of how the disease can develop.