FOR Heather Green, the journey to understanding her own body has been a slow unravelling.

The signs of Parkinson’s disease crept into her life almost imperceptibly over the span of a decade.

"Probably the first symptom I had was my sense of smell reduced," Heather said.

"It didn't go completely, but it was noticeably reduced.

"I didn't think much of it; I felt fine."

Yet, as time went on, m...